Elementary elm_glview: call surface update when mode changes
Elementary elm_glview: call surface update when mode changes

When glview mode was set using elm_glview_mode_set() function, it
wasn't properly calling the surface_update function internally.
This can potentially cause the surface to be not updated to the latest
mode that was set by the user.  Also removed a call to the surface
update function that was unnecessary.

rvandegrift/elementary,tasn/elementary,tasn/elementary,rvandegrift/elementary,FlorentRevest/Elementary,rvandegrift/elementary,tasn/elementary,tasn/elementary,FlorentRevest/Elementary,rvandegrift/elementary,tasn/elementary,FlorentRevest/Elementary,FlorentRevest/Elementary