FIX android sub version support

# Inherit from those products. Most specific first.

$(call inherit-product, $(SRC_TARGET_DIR)/product/full_base.mk)

ifeq (5.1, $(PLATFORM_VERSION))

ifneq (, $(filter 5.%, $(PLATFORM_VERSION)))

THIS_ANDROID_VERSION :=5x

endif

ifeq (6.0, $(PLATFORM_VERSION))

ifneq (, $(filter 6.%, $(PLATFORM_VERSION)))

THIS_ANDROID_VERSION :=6x

endif