gta4xl-common: Remove quotes from TARGET_RECOVERY_PIXEL_FORMAT

* Required after TARGET_RECOVERY_PIXEL_FORMAT is added to soong

Change-Id: Ie6dcac4beccd7e499416a16d5d52404fe9d82f33
diff --git a/BoardConfigCommon.mk b/BoardConfigCommon.mk
index 6a87687..9054648 100644
--- a/BoardConfigCommon.mk
+++ b/BoardConfigCommon.mk
@@ -149,7 +149,7 @@
 BOARD_INCLUDE_RECOVERY_DTBO := true
 BOARD_USES_FULL_RECOVERY_IMAGE := true
 TARGET_RECOVERY_FSTAB := $(COMMON_PATH)/configs/init/fstab.exynos9611
-TARGET_RECOVERY_PIXEL_FORMAT := "ABGR_8888"
+TARGET_RECOVERY_PIXEL_FORMAT := ABGR_8888
 TARGET_RECOVERY_UPDATER_LIBS := librecovery_updater_exynos9611
 
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