Skip creating vendor variants for native_bridge modules

native_bridge modules may not have vendor variants because they are
used only for native_loader.

Bug: 140702618
Bug: 137709824
Test: lunch aosp_cf_x86_phone-userdebug && make
Change-Id: Ic9f4abff22597693e66eef520cd1101b5e8c8938

cc/cc.go

@@ -2323,6 +2323,9 @@ func ImageMutator(mctx android.BottomUpMutatorContext) {
 		// If the device isn't compiling against the VNDK, we always
 		// use the core mode.
 		coreVariantNeeded = true
+	} else if m.Target().NativeBridge == android.NativeBridgeEnabled {
+		// Skip creating vendor variants for natvie bridge modules
+		coreVariantNeeded = true
 	} else if _, ok := m.linker.(*llndkStubDecorator); ok {
 		// LL-NDK stubs only exist in the vendor variant, since the
 		// real libraries will be used in the core variant.