hikey960: Enable Virt-A/B on HiKey960 am: fb375231fc am: 2dfc506207 am: e99d1866b9

Original change: https://android-review.googlesource.com/c/device/linaro/hikey/+/1549236

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I3506ac10f5f124bc68afa9307ddd7b42d827b8aa
diff --git a/fstab.ramdisk960 b/fstab.ramdisk960
index 6192881..098386d 100644
--- a/fstab.ramdisk960
+++ b/fstab.ramdisk960
@@ -1,4 +1,4 @@
-system /system ext4 noatime,ro,errors=panic wait,logical,first_stage_mount
-vendor /vendor ext4 noatime,ro,errors=panic wait,logical,first_stage_mount
-system_ext /system_ext ext4 noatime,ro,errors=panic wait,logical,first_stage_mount
-product /product ext4 noatime,ro,errors=panic wait,logical,first_stage_mount
+system /system ext4 noatime,ro,errors=panic wait,logical,first_stage_mount,slotselect
+vendor /vendor ext4 noatime,ro,errors=panic wait,logical,first_stage_mount,slotselect
+system_ext /system_ext ext4 noatime,ro,errors=panic wait,logical,first_stage_mount,slotselect
+product /product ext4 noatime,ro,errors=panic wait,logical,first_stage_mount,slotselect
diff --git a/hikey960/BoardConfig.mk b/hikey960/BoardConfig.mk
index 789b18f..0cd9914 100644
--- a/hikey960/BoardConfig.mk
+++ b/hikey960/BoardConfig.mk
@@ -10,7 +10,7 @@
 
 BOARD_KERNEL_CMDLINE := androidboot.hardware=hikey960 firmware_class.path=/vendor/firmware efi=noruntime init=/init
 BOARD_KERNEL_CMDLINE += androidboot.boot_devices=soc/ff3b0000.ufs
-BOARD_KERNEL_CMDLINE += loglevel=15
+BOARD_KERNEL_CMDLINE += loglevel=15 androidboot.slot_suffix=_a
 
 ifeq ($(TARGET_BUILTIN_EDID), true)
 BOARD_KERNEL_CMDLINE += drm_kms_helper.edid_firmware=edid/1920x1080.bin
diff --git a/hikey960/device-hikey960.mk b/hikey960/device-hikey960.mk
index f1946ee..d901035 100644
--- a/hikey960/device-hikey960.mk
+++ b/hikey960/device-hikey960.mk
@@ -14,6 +14,16 @@
 # limitations under the License.
 #
 
+# Enable Virtual A/B
+AB_OTA_UPDATER := true
+AB_OTA_PARTITIONS += \
+    product \
+    system \
+    system_ext \
+    vendor
+
+$(call inherit-product, $(SRC_TARGET_DIR)/product/virtual_ab_ota.mk)
+
 PRODUCT_COPY_FILES +=	$(TARGET_PREBUILT_KERNEL):kernel \
 			$(TARGET_PREBUILT_DTB):hi3660-hikey960.dtb