Add support for RGBA_8888 pixel format

Change-Id: Ia15d49e51cad5bc8a3291975e1ff515a2b1c419c
diff --git a/minuitwrp/Android.mk b/minuitwrp/Android.mk
index 2f30343..9204339 100644
--- a/minuitwrp/Android.mk
+++ b/minuitwrp/Android.mk
@@ -62,6 +62,9 @@
 LOCAL_CFLAGS += -D_EVENT_LOGGING
 endif
 
+ifeq ($(subst ",,$(TARGET_RECOVERY_PIXEL_FORMAT)),RGBA_8888)
+  LOCAL_CFLAGS += -DRECOVERY_RGBA
+endif
 ifeq ($(subst ",,$(TARGET_RECOVERY_PIXEL_FORMAT)),RGBX_8888)
   LOCAL_CFLAGS += -DRECOVERY_RGBX
 endif