Fix TIVI-2772

Fix TIVI-2772

webkit2-efl build fail during emulator image build with gbs.
This happens during the "WaylandSurface.cpp" being compiled.
The complier complains the type PFNEGLQUERYWAYLANDBUFFERWL isn't defined.
This type should be defined in "WaylandPlatformExt.h".
But with the emulator build, the file "WaylandPlatformExt.h" cannot
be included in the "EGLSurface.h", since USE(MESA) is disabled.
So the solution is let "WaylandPlatformExt.h" be included in the
"EGLSurface.h" for both emulator and standard build.

Change-Id: I4c661deb6b91f8b74de0bc206e84a1adace81e35