Skip forward bytes of contextAttribs need to be +32 instead of +8, otherwise param/value pair will get wrong values. Validated by test_egl.c test case on Intel core i5 Dell E6430, and also by adding glClear to test_egl.c to show red color rectangular viewport on the screen. Without this bugfix, the loop for checking of context attribute pairs in eglCreateContext will run twice instead of just checking the key/value pair once.