am 83a56b0a: Disable journaling to save system.img space.

* commit '83a56b0a79e3b80a721526ef46ff89616e601189':
  Disable journaling to save system.img space.
diff --git a/BoardConfigCommon.mk b/BoardConfigCommon.mk
index e8625d1..bb1a5a7 100644
--- a/BoardConfigCommon.mk
+++ b/BoardConfigCommon.mk
@@ -39,6 +39,8 @@
 TARGET_USERIMAGES_USE_EXT4 := true
 
 BOARD_SYSTEMIMAGE_PARTITION_SIZE := 681574400
+# Disable journaling on system.img to save space.
+BOARD_SYSTEMIMAGE_JOURNAL_SIZE := 0
 BOARD_USERDATAIMAGE_PARTITION_SIZE := 6567231488
 BOARD_FLASH_BLOCK_SIZE := 4096