sweep: add landscape mode for DT2L
zram & zsmalloc: update to msm-3.7 version

* Remove old zram version in drivers/zram
* Update zram & zsmalloc to latest unchanged msm-3.7 (will
  add compatibility in separate change).

Change-Id: I05bed573cc37a5b04ff0d1ac67fbd60632b52c05
zram & zsmalloc: fix code for 2.6.35 kernel

Change-Id: I744ddd9a084300460a29c3706ed84721faef66fe
Update Samsung configs for new zram

Also disable cleancache. This is active only when zcache is used,
and no previous build ever had zcache active (it needed a cmdline
parameter of "zcache" to activate). I already tested with zcache
active, and the driver doesn't function properly.

Frontswap also has the same problem, but disabling it via the
config will cause build errors. Will fix/remove these drivers
properly later.

Change-Id: Icb74e4414b9bc051b39eb92bf6c621b14f943cfc