Revert "Remove settings for old ArmNN HIDL backend"

This revert was created by Android Culprit Assistant. The culprit was identified in the following culprit search session (http://go/aca-get/123b2665-83ef-4fd0-904d-a0d8c5782db9).

Change-Id: I81b40e12be7178abaa7991dfecd2f7dbb5ebd48e

BoardConfig-common.mk

@@ -358,6 +358,16 @@ BOARD_VNDK_VERSION := current
 # H/W align restriction of MM IPs
 BOARD_EXYNOS_S10B_FORMAT_ALIGN := 64
 
+# NeuralNetworks
+GPU_SOURCE_PRESENT := $(wildcard vendor/arm/mali/valhall)
+GPU_PREBUILD_PRESENT := $(wildcard vendor/google_devices/zuma/prebuilts/gpu)
+ifneq (,$(strip $(GPU_SOURCE_PRESENT) $(GPU_PREBUILD_PRESENT)))
+ARMNN_COMPUTE_CL_ENABLE := 1
+else
+ARMNN_COMPUTE_CL_ENABLE := 0
+endif
+ARMNN_COMPUTE_NEON_ENABLE := 1
+
 # Boot.img
 BOARD_RAMDISK_USE_LZ4     := true
 #BOARD_KERNEL_BASE        := 0x80000000

device.mk

@@ -244,6 +244,8 @@ PRODUCT_SOONG_NAMESPACES += \
 $(call soong_config_set,pixel_mali,soc,$(TARGET_BOARD_PLATFORM))
 $(call soong_config_set,arm_gralloc,soc,$(TARGET_BOARD_PLATFORM))
 
+include device/google/gs101/neuralnetwork/neuralnetwork.mk
+
 include device/google/gs-common/gpu/gpu.mk
 PRODUCT_PACKAGES += \
 	csffw_image_prebuilt__firmware_prebuilt_ttux_mali_csffw.bin \
@@ -984,6 +986,9 @@ PRODUCT_PACKAGES += \
 
 endif
 
+# ARM NN files
+ARMNN_COMPUTE_CL_ENABLE := 1
+
 # Vibrator Diag
 PRODUCT_PACKAGES_DEBUG += \
 	diag-vibrator \