Set size of cache partition

Bug: 5153694
Change-Id: Icbdad64ffd28c921761444ffb84c98c9fa2839fe
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 2b06586..c2ed8fd 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -49,6 +49,8 @@
 BOARD_SYSTEMIMAGE_PARTITION_SIZE := 268435456
 #BOARD_SYSTEMIMAGE_PARTITION_SIZE := 16777216
 BOARD_USERDATAIMAGE_PARTITION_SIZE := 536870912
+BOARD_CACHEIMAGE_PARTITION_SIZE := 268435456
+BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
 BOARD_FLASH_BLOCK_SIZE := 4096
 
 #TARGET_PROVIDES_INIT_RC := true