emulator opengl: use eglGetProcAddress in EGL dispatch.

Initialize EGL extensions functions in the EGLDispatch
table using eglGetProcAddress instead of dlsym.
(try dlsym if eglGetProcAddress failed).

Change-Id: I256c4c5f9f3728a5b0e4d5bbcc75b83aa8a85f29
1 file changed