platform/framework/base: Fix Half Blank screen issue in Wallpaper

Issue: Start Any Full Screen Activity/ VideoView Activity in
       portrait mode, change to landscape mode and then perform
       suspend and resume. Only Half of the screen has display,
       the other half is blank screen

Fix: Added a check to update surface size on both rotation change
     and surface size change.

Change-Id: Iba77dfdb778ea3c60bbb1df33188fd4f792ab77c
CRs-Fixed: 712741
Signed-off-by: Jake Weinstein <xboxlover360@gmail.com>