Add coverage flags for Clang coverage builds.

Bug: 143977934
Test: m CLANG_COVERAGE=true
Test: m NATIVE_COVERAGE=true
Change-Id: I5d07d336e241856961eb0bc9678fdc9d5a076802
diff --git a/apex/apex.go b/apex/apex.go
index 289175b..d5d12e4 100644
--- a/apex/apex.go
+++ b/apex/apex.go
@@ -767,7 +767,7 @@
 }
 
 func (a *apexBundle) IsNativeCoverageNeeded(ctx android.BaseModuleContext) bool {
-	return ctx.Device() && ctx.DeviceConfig().NativeCoverageEnabled()
+	return ctx.Device() && (ctx.DeviceConfig().NativeCoverageEnabled() || ctx.DeviceConfig().ClangCoverageEnabled())
 }
 
 func (a *apexBundle) PreventInstall() {