Enable Rust host coverage. am: d141912806

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/3063651

Change-Id: I71c626d30a61ee34a884a37306655c3414d63de7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

rust/coverage.go

@@ -87,10 +87,6 @@ func (cov *coverage) flags(ctx ModuleContext, flags Flags, deps PathDeps) (Flags
 }
 
 func (cov *coverage) begin(ctx BaseModuleContext) {
-	if ctx.Host() {
-		// Host coverage not yet supported.
-	} else {
 	// Update useSdk and sdkVersion args if Rust modules become SDK aware.
 	cov.Properties = cc.SetCoverageProperties(ctx, cov.Properties, ctx.RustModule().nativeCoverage(), false, "")
-	}
 }