allow double-quotes or not in TARGET_RECOVERY_PIXEL_FORMAT

Change-Id: I0bf22c87c51a34ee4a839c4966277fad8150bd59
diff --git a/minui/Android.mk b/minui/Android.mk
index 4c4d7c7..285ac62 100644
--- a/minui/Android.mk
+++ b/minui/Android.mk
@@ -9,10 +9,14 @@
 
 LOCAL_MODULE := libminui
 
-ifeq ($(TARGET_RECOVERY_PIXEL_FORMAT),"RGBX_8888")
+# This used to compare against values in double-quotes (which are just
+# ordinary characters in this context).  Strip double-quotes from the
+# value so that either will work.
+
+ifeq ($(subst ",,$(TARGET_RECOVERY_PIXEL_FORMAT)),RGBX_8888)
   LOCAL_CFLAGS += -DRECOVERY_RGBX
 endif
-ifeq ($(TARGET_RECOVERY_PIXEL_FORMAT),"BGRA_8888")
+ifeq ($(subst ",,$(TARGET_RECOVERY_PIXEL_FORMAT)),BGRA_8888)
   LOCAL_CFLAGS += -DRECOVERY_BGRA
 endif