[android][build.ps1] use the newly built lld when linking swift runtime for android

the linker in the NDK might be too old, and not support all relocations, so we should use the lld we have just built in the toolchain

Author: hyp

utils/build.ps1

@@ -984,6 +984,13 @@ function Build-CMakeProject {
         # Add additional linker flags for generating the debug info.
         Append-FlagsDefine $Defines CMAKE_SHARED_LINKER_FLAGS "/debug"
         Append-FlagsDefine $Defines CMAKE_EXE_LINKER_FLAGS "/debug"
+      } elseif ($Platform -eq "Android") {
+        # Use a built lld linker as the Android's NDK linker might be too
+        # old and not support all required relocations needed by the Swift
+        # runtime.
+        $ldPath = ([IO.Path]::Combine($CompilersBinaryCache, "bin", "ld.lld"))
+        Append-FlagsDefine $Defines CMAKE_SHARED_LINKER_FLAGS "--ld-path=$ldPath"
+        Append-FlagsDefine $Defines CMAKE_EXE_LINKER_FLAGS "--ld-path=$ldPath"
       }
     }