|flash ext| - reload the B2G extensions on device

Change-Id: Ia7a4a0281fd66a16c4bc11a95297e71735ccea83

.config

@@ -27,8 +27,16 @@ GECKO_OBJDIR=${ANDROID_BUILD_TOP}/out/target/product/${DEVICE}/obj/objdir-gecko
 export GAIA_DOMAIN
 
 
-flash_fastboot_ext4()
+__flash_device()
 {
+	if [ "$1" = "ext" ]; then
+		run_adb remount
+		run_adb shell rm -r /system/b2g/distribution/extensions
+		run_adb push out/target/product/$DEVICE/system/b2g/distribution/extensions /system/b2g/distribution/extensions
+		run_adb shell rm -r /data/b2g
+		return
+	fi
+
 	$ADB reboot bootloader
 	$FASTBOOT devices
 
@@ -56,4 +64,4 @@ flash_fastboot_ext4()
 	fi
 }
 
-eval "flash_${DEVICE}() { flash_fastboot_ext4 $1; }"
+eval "flash_${DEVICE}() { __flash_device $1; }"