Add missing ACTION_MEDIA_UNMOUNTED intent

When an SD card is removed without the user unmounting, the intent
ACTION_MEDIA_BAD_REMOVAL is fired but is missing the preceeding
ACTION_MEDIA_UNMOUNTED which is needed to keep UI consistency.

Now when bad media removal is detected an ACTION_MEDIA_UNMOUNTED
intent is sent before the ACTION_MEDIA_BAD_REMOVAL.

Change-Id: I133300f42bafab141351e796d7cfc13c15d133e0
 Fixed SystemUI crash when disable GPU acceleration

The designated logic should switch to SW Canvas render if OpenGL-ES 2.0
is not available when GPU 3D core is disabled or non-existed.

Change-Id: Ie66799bc9e1113a4b09adbb09b77021622a08bc4
Signed-off-by: Xianzhong <b07117@freescale.com>
Signed-off-by: guoyin.chen <guoyin.chen@freescale.com>