Support ALPHA_8 + HARDWARE

Bug: 141480329
Test: I9f64b966092942964073c2dbe9b091e618f7df95
Change-Id: Ibfec753b1f82b0ff97341a742b2933e2f18b234a
diff --git a/libs/hwui/HardwareBitmapUploader.h b/libs/hwui/HardwareBitmapUploader.h
index 34f43cd..81057a2 100644
--- a/libs/hwui/HardwareBitmapUploader.h
+++ b/libs/hwui/HardwareBitmapUploader.h
@@ -30,11 +30,13 @@
 #ifdef __ANDROID__
     static bool hasFP16Support();
     static bool has1010102Support();
+    static bool hasAlpha8Support();
 #else
     static bool hasFP16Support() {
         return true;
     }
     static bool has1010102Support() { return true; }
+    static bool hasAlpha8Support() { return true; }
 #endif
 };