libwvhidl: upgrade to android.hardware.drm@1.4

Bug: 136119370
Test: GtsMediaTestCases MediaDrmTest#testRequiresSecureDecoder
Change-Id: Iaaa7c225c0056904b5fd98c4557ec47f661b2c7d

libwvdrmengine/test/unit/WVCryptoFactory_test.cpp

@@ -10,7 +10,7 @@
 namespace wvdrm {
 namespace hardware {
 namespace drm {
-namespace V1_3 {
+namespace V1_4 {
 namespace widevine {
 
 using ::android::sp;
@@ -48,7 +48,7 @@ TEST(WVCryptoFactoryTest, DoesNotSupportUnsupportedCryptoSchemes) {
 }
 
 }  // namespace widevine
-}  // namespace V1_3
+}  // namespace V1_4
 }  // namespace drm
 }  // namespace hardware
 }  // namespace wvdrm