sm8350-common: Build Widevine DRM HAL dependencies

The vendor variants of android.hardware.drm@1.[0-4] are no longer
implicitly built since the migration to AIDL ClearKey DRM HAL.

Change-Id: I79c69e93e27f3c2f4a1c6f7acf5f013ee8f6cd03

common.mk

@@ -171,6 +171,7 @@ PRODUCT_COPY_FILES += \
 
 # DRM
 PRODUCT_PACKAGES += \
+    android.hardware.drm@1.3.vendor \
     android.hardware.drm-service.clearkey
 
 # Fastbootd