sm6225-common: Setup A/B partitions

Change-Id: I5a8a92927a30a16898a11b1e5faee84147945e6f
diff --git a/common.mk b/common.mk
index d82f363..63ac10d 100644
--- a/common.mk
+++ b/common.mk
@@ -19,6 +19,22 @@
 # A/B
 $(call inherit-product, $(SRC_TARGET_DIR)/product/virtual_ab_ota/launch_with_vendor_ramdisk.mk)
 
+AB_OTA_POSTINSTALL_CONFIG += \
+    RUN_POSTINSTALL_system=true \
+    POSTINSTALL_PATH_system=system/bin/otapreopt_script \
+    FILESYSTEM_TYPE_system=ext4 \
+    POSTINSTALL_OPTIONAL_system=true
+
+AB_OTA_POSTINSTALL_CONFIG += \
+    RUN_POSTINSTALL_vendor=true \
+    POSTINSTALL_PATH_vendor=bin/checkpoint_gc \
+    FILESYSTEM_TYPE_vendor=ext4 \
+    POSTINSTALL_OPTIONAL_vendor=true
+
+PRODUCT_PACKAGES += \
+    checkpoint_gc \
+    otapreopt_script
+
 # Shipping API Level
 BOARD_SHIPPING_API_LEVEL := 33