tests: net: http: also build with clang

Build this test also with clang to increase coverage. This test is
selected because it had some issues with clang, however, there is
nothing special about this tests when it comes to clang, it will be one
of many to come to increase coverage.

Signed-off-by: Anas Nashif <[email protected]>

Author: nashif

tests/net/lib/http_server/tls/testcase.yaml

@@ -6,11 +6,17 @@ common:
     - net
     - server
     - socket
-  integration_platforms:
-    - native_sim
-    - qemu_x86
-  platform_allow:
-    - native_sim
-    - qemu_x86
 tests:
-  net.http.server.tls: {}
+  net.http.server.tls:
+    platform_allow:
+      - qemu_x86
+    integration_platforms:
+      - qemu_x86
+  net.http.server.tls.toolchain:
+    platform_allow:
+      - native_sim
+    integration_platforms:
+      - native_sim
+    integration_toolchains:
+      - host
+      - llvm