Camera2: Make menu not pop up in take picture interface

When we click menu key in view interface and take picture
interface,the menu will both pop up.

Modify condition to achieve not pop up menu in take picture
interface.

CRs-fixed: 652961

Change-Id: Ifc2e3b4535fdf48c110673a3ec633ecdc93cc37a
Camera2: fix sawtooth in camera preview

Under certain combination of preview/screen resolution, sawtooth is
seen on preview image. In setTransformMatrix(),
scaledTextureWidth/Height is unnecessarily rounded to integers,
losing precision. Removing the rounding fixes the problem.

CRs-Fixed: 705322
Change-Id: Ia78b012cf530528b3677a8684279862a81b145ed
Merge branch 'cm-11.0' into kk_mkt