dragonboards: fstab: Use erofs for read-only partitions

Change-Id: I795117a5f3e8099ae7781ce5d01a2e328573bc23
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
diff --git a/BoardConfigCommon.mk b/BoardConfigCommon.mk
index c85d926..64d3f9e 100644
--- a/BoardConfigCommon.mk
+++ b/BoardConfigCommon.mk
@@ -18,14 +18,14 @@
 TARGET_NO_KERNEL := true
 TARGET_NO_RECOVERY := true
 
-BOARD_SYSTEMIMAGE_FILE_SYSTEM_TYPE := ext4
+BOARD_SYSTEMIMAGE_FILE_SYSTEM_TYPE := erofs
 TARGET_USERIMAGES_USE_EXT4 := true
 TARGET_COPY_OUT_VENDOR := vendor
-BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE := ext4
+BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE := erofs
 TARGET_COPY_OUT_SYSTEM_EXT := system_ext
-BOARD_SYSTEM_EXTIMAGE_FILE_SYSTEM_TYPE := ext4
+BOARD_SYSTEM_EXTIMAGE_FILE_SYSTEM_TYPE := erofs
 TARGET_COPY_OUT_PRODUCT := product
-BOARD_PRODUCTIMAGE_FILE_SYSTEM_TYPE := ext4
+BOARD_PRODUCTIMAGE_FILE_SYSTEM_TYPE := erofs
 BOARD_USES_METADATA_PARTITION := true
 # Super partition
 TARGET_USE_DYNAMIC_PARTITIONS := true