Use GTEST_SKIP for generic crypto tests

Bug: 251240681
Merged from https://widevine-internal-review.googlesource.com/180050

Change-Id: I5aebcf10f9c8bad5ff21c22bc882040ecd0b390a

libwvdrmengine/cdm/core/test/generic_crypto_unittest.cpp

@@ -37,6 +37,9 @@ class WvGenericCryptoTest : public WvCdmTestBaseWithEngine {
 
   void SetUp() override {
     WvCdmTestBase::SetUp();
+    if (!wvoec::global_features.generic_crypto) {
+      GTEST_SKIP() << "Test for devices with generic crypto API only";
+    }
     EnsureProvisioned();
     ASSERT_NO_FATAL_FAILURE(holder_.OpenSession());
     ASSERT_NO_FATAL_FAILURE(holder_.FetchLicense());