Changed the way the fingerprint icon is included in the credential selector list, to stop Gradle from failing on Github

Author: TheMartinizer

play-services-fido/core/src/main/res/layout/fido_credential_selector_list_item.xml

@@ -24,7 +24,7 @@
             android:layout_marginTop="8dp"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="parent"
-            app:srcCompat="@drawable/ic_fido_fingerprint"
+            android:src="@drawable/ic_fido_fingerprint"
             android:contentDescription="@string/credential_icon_description" />
 
         <LinearLayout