framework: Allow specifying max wallpaper width

For some devices with very high-res screen (1920x1200), the wallpaper
width suggested by the launcher may be too large for the GPU and so
we need to limit it. (2048 for the above mentioned screen)

We don't need to limit the height since that's the height of the
screen.

Change-Id: I5b25bd931db0b2610e260921f28b92d8b0966aa6
Signed-off-by: Rohan Mathur <rohanmathur34@gmail.com>
fb: correct seeker fb style for 4.4

based on this commit https://github.com/SlimRoms/frameworks_base/commit/a845169c128c19825a69a0ebdf2e4d366fdd67ad

the idea was good but bad done. A middle in the night action lol.
Problem is that holo light themed app cannot handle the white seekbar of course
So add the complete seekbar into the Holo.Light switch to support both cases

Holo: white seekbar
Holo.Light: drak gray seekbar

Change-Id: I82252d0cb30cd4af47d624a37ccc904cb7e9c1e6