nx: Enforce vintf kernel requirements

The build system enables this for shipping API level >=29
but we also want it to pass the vintf runtime checks.

Change-Id: Ie2147893a1551b736880913334a3c134a17ca91c

device.mk

@@ -42,6 +42,8 @@ PRODUCT_CHARACTERISTICS   := tablet
 PRODUCT_AAPT_PREF_CONFIG  := xhdpi
 endif
 
+PRODUCT_OTA_ENFORCE_VINTF_KERNEL_REQUIREMENTS := true
+
 $(call inherit-product, frameworks/native/build/tablet-7in-xhdpi-2048-dalvik-heap.mk)
 
 PRODUCT_USE_DYNAMIC_PARTITIONS := true