apex: disallow VINTF fragments in updatable APEX

Since libvintf doesn't support forward compatibility, updatable APEXes
shouldn't have VINTF fragments.

Bug: 399527905
Test: m nothing --no-skip-soong-tests
Change-Id: Ie0f1b4599f27d9aa478aac689dd167e77b3733b8
diff --git a/apex/apex_test.go b/apex/apex_test.go
index 9eaf814..a0a42a1 100644
--- a/apex/apex_test.go
+++ b/apex/apex_test.go
@@ -12216,3 +12216,30 @@
 	// Ensure that vintf fragment file is being installed
 	ensureContains(t, cmd, "/etc/vintf/my_vintf_fragment.xml ")
 }
+
+func TestNoVintfFragmentInUpdatableApex(t *testing.T) {
+	t.Parallel()
+	testApexError(t, `VINTF fragment .* is not supported in updatable APEX`, apex_default_bp+`
+		apex {
+			name: "myapex",
+			manifest: ":myapex.manifest",
+			key: "myapex.key",
+			binaries: [ "mybin" ],
+			updatable: true,
+			min_sdk_version: "29",
+		}
+
+		cc_binary {
+			name: "mybin",
+			srcs: ["mybin.cpp"],
+			vintf_fragment_modules: ["my_vintf_fragment.xml"],
+			apex_available: [ "myapex" ],
+			min_sdk_version: "29",
+		}
+
+		vintf_fragment {
+			name: "my_vintf_fragment.xml",
+			src: "my_vintf_fragment.xml",
+		}
+	`)
+}