Settings: Fix Lock Size

Get lock size for device.

Change-Id: Ie9bcbb7ff2fec73128254b8ad290f3e03c4e2f0b
Settings: Remove Setting From Tablets

Tablets have no expanded-widget
	lock icon.  Remove if user
	uses a secure lock and no
	lock-before-unlock.

PS2: Derp.  Opposite logic.

Change-Id: I174b76988a5ff60680a53a8632e518d99ca49dbd
Settings: Lockscreen Slim Handle

Grab large slim icon and resize
	it rather than process
	another variable while
	the lockscreen initilizes.

PS2: Update image

Change-Id: I1ed51f80d5581b52c232690c2bd3973c994060d3

Conflicts:

	res/values/slim_arrays.xml
	res/values/slim_strings.xml