Drive instrumentation with build flag for C/C++ am: 10fff94e2e am: c19dfaf9d6

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/3065602

Change-Id: I04dc519f2bb9a3304071ac5430ead38405a2326d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

aconfig/codegen/init.go

@@ -49,11 +49,12 @@ var (
 				` && ${aconfig} create-cpp-lib` +
 				`    --mode ${mode}` +
 				`    --cache ${in}` +
-				`    --out ${gendir}`,
+				`    --out ${gendir}` +
+				`    --allow-instrumentation ${debug}`,
 			CommandDeps: []string{
 				"$aconfig",
 			},
-		}, "gendir", "mode")
+		}, "gendir", "mode", "debug")
 
 	// For rust_aconfig_library: Generate Rust library
 	rustRule = pctx.AndroidStaticRule("rust_aconfig_library",