Make sure we recreate Evas_GL_Surface on native widget resize

Make sure we recreate Evas_GL_Surface on native widget resize

In EFL 1.13 we need to re-create our Evas_GL_Surface whenever native
image bound to it changes it's size. I don't exactly know what change in
EFL made in necessary, but some of the EFL docs do actually show that
this needs to be done this way (see "Evas GL Widget Tutorial" on
tizen.org). With this patch in place rendering works correctly again
on Odroid with images newer than 27.02.2015. There is no need to install
old EFL version anymore.

Change-Id: I769301a5c1f887d4d0923916c3a459f75a5b6933
Signed-off-by: Piotr Tworek <p.tworek@samsung.com>