Upgrade Widevine to android.hardware.drm@1.4

Bug: 136119370
Test: GtsMediaTestCases MediaDrmTest#testRequiresSecureDecoder
Change-Id: I4f8334d2b4290bff9f98027f4593ff5cf4c13d7e

device.mk

@@ -435,7 +435,7 @@ PRODUCT_PACKAGES += \
     android.hardware.drm@1.0-impl \
     android.hardware.drm@1.0-service \
     android.hardware.drm@1.3-service.clearkey \
-    android.hardware.drm@1.3-service.widevine
+    android.hardware.drm@1.4-service.widevine
 
 # NFC and Secure Element packages
 PRODUCT_PACKAGES += \