Check CDD required EGL extensions

Add a test that verifies that the EGL actually reports the extensions
required by the O CDD. Actually functional verification is triggered by
existence of the extensions.

Test: CtsOpenGLTestCases on dev mode on Bullhead and Marlin.
Test: Failure test with extension "foo" temporarily added.
Bug: 34163336
Change-Id: I860a39928bb7bd1fd29934c2f8a9bd8a3063d671
1 file changed