exynos9610-common: Cleanup dead targets

exynos9610-common: Cleanup dead targets

build/make/core/main.mk:1136: warning:  device/motorola/hannah/lineage_hannah.mk includes non-existent modules in PRODUCT_PACKAGES
Offending entries:
android.hardware.neuralnetworks@1.2-service-sample-all
wpa_supplicant.conf
build/make/core/main.mk:1136: error: Build failed.
15:35:26 ckati failed with: exit status 1

To do this yourself, put the following line into
lineage_$TARGET.mk:

`$(call enforce-product-packages-exist,)`

Note that the above flag must be in the product
makefile to work.

Change-Id: I0e4d93f4c3be077d49befa1f547d11d623ca74d5