Build host.native for native AOT libraries testing

We don't have a need for host in native AOT but after dotnet#113765 the outerloop started failing with:

```
  Building native export: "/usr/local/bin/clang-20" -O2 -shared -fpic -D DNNE_ASSEMBLY_NAME=Microsoft.Interop.Tests.NativeExports -D DNNE_COMPILE_AS_SOURCE -I "/__w/1/s/.packages/dnne/2.0.5/tools/platform" -I "/__w/1/s/artifacts/bin/linux-arm64.Release/corehost" -o "/__w/1/s/artifacts/obj/NativeExports/Release/net10.0/linux-arm64/dnne/bin/Microsoft.Interop.Tests.NativeExportsNE.so" --target=aarch64-linux-gnu --gcc-toolchain=/crossrootfs/arm64/usr --sysroot=/crossrootfs/arm64  "/__w/1/s/artifacts/obj/NativeExports/Release/net10.0/linux-arm64/dnne/Microsoft.Interop.Tests.NativeExports.g.c" "/__w/1/s/.packages/dnne/2.0.5/tools/platform/platform.c" -lstdc++ "/__w/1/s/artifacts/bin/linux-arm64.Release/corehost/libnethost.a" --target=aarch64-linux-gnu --gcc-toolchain=/crossrootfs/arm64/usr --sysroot=/crossrootfs/arm64 -fuse-ld=lld  -Wl,--rpath-link=/crossrootfs/arm64/lib/aarch64-linux-gnu -Wl,--rpath-link=/crossrootfs/arm64/usr/lib/aarch64-linux-gnu 
clang-20 : error : no such file or directory: '/__w/1/s/artifacts/bin/linux-arm64.Release/corehost/libnethost.a' [/__w/1/s/src/libraries/System.Runtime.InteropServices/tests/TestAssets/NativeExports/NativeExports.csproj]
```

because some of the interop testing uses DNNE. This is a blind attempt to fix it.

Author: MichalStrehovsky

eng/pipelines/coreclr/runtime-nativeaot-outerloop.yml

@@ -69,7 +69,7 @@ extends:
             testGroup: innerloop
             isSingleFile: true
             nameSuffix: NativeAOT_Libs
-            buildArgs: -s clr.aot+libs+libs.tests -c $(_BuildConfig) /p:TestNativeAot=true /p:ArchiveTests=true /p:IlcUseServerGc=false /p:RunAnalyzers=false
+            buildArgs: -s clr.aot+host.native+libs+libs.tests -c $(_BuildConfig) /p:TestNativeAot=true /p:ArchiveTests=true /p:IlcUseServerGc=false /p:RunAnalyzers=false
             timeoutInMinutes: 300 # doesn't normally take this long, but I've seen Helix queues backed up for 160 minutes
             includeAllPlatforms: true
             # extra steps, run tests
@@ -95,7 +95,7 @@ extends:
             testGroup: innerloop
             isSingleFile: true
             nameSuffix: NativeAOT_Checked_Libs
-            buildArgs: -s clr.aot+libs+libs.tests -c $(_BuildConfig) -rc Checked /p:TestNativeAot=true /p:ArchiveTests=true /p:IlcUseServerGc=false /p:RunAnalyzers=false
+            buildArgs: -s clr.aot+host.native+libs+libs.tests -c $(_BuildConfig) -rc Checked /p:TestNativeAot=true /p:ArchiveTests=true /p:IlcUseServerGc=false /p:RunAnalyzers=false
             timeoutInMinutes: 360
             # extra steps, run tests
             postBuildSteps:
@@ -120,7 +120,7 @@ extends:
             testGroup: innerloop
             isSingleFile: true
             nameSuffix: NativeAOT_Checked_Libs_SizeOpt
-            buildArgs: -s clr.aot+libs+libs.tests -c $(_BuildConfig) -rc Checked /p:TestNativeAot=true /p:ArchiveTests=true /p:OptimizationPreference=Size /p:IlcUseServerGc=false /p:RunAnalyzers=false
+            buildArgs: -s clr.aot+host.native+libs+libs.tests -c $(_BuildConfig) -rc Checked /p:TestNativeAot=true /p:ArchiveTests=true /p:OptimizationPreference=Size /p:IlcUseServerGc=false /p:RunAnalyzers=false
             timeoutInMinutes: 240
             # extra steps, run tests
             postBuildSteps:
@@ -145,7 +145,7 @@ extends:
             testGroup: innerloop
             isSingleFile: true
             nameSuffix: NativeAOT_Checked_Libs_SpeedOpt
-            buildArgs: -s clr.aot+libs+libs.tests -c $(_BuildConfig) -rc Checked /p:TestNativeAot=true /p:ArchiveTests=true /p:OptimizationPreference=Speed /p:IlcUseServerGc=false /p:RunAnalyzers=false
+            buildArgs: -s clr.aot+host.native+libs+libs.tests -c $(_BuildConfig) -rc Checked /p:TestNativeAot=true /p:ArchiveTests=true /p:OptimizationPreference=Speed /p:IlcUseServerGc=false /p:RunAnalyzers=false
             timeoutInMinutes: 240
             # extra steps, run tests
             postBuildSteps:
@@ -221,4 +221,4 @@ extends:
               - template: /eng/pipelines/common/templates/runtimes/test-variables.yml
                 parameters:
                   testGroup: innerloop
-                  liveLibrariesBuildConfig: Release
+                  liveLibrariesBuildConfig: Release