aries-common: init: zram driver improvements

The comp_algorithm file is read-write and lets to show
available and selected compression algorithms, change
compression algorithm selection (lzo | lz4).

The max_comp_streams file is read-write and specifies the
number of backend's zcomp_strm compression streams (number of
concurrent compress operations) - limits(1-4).

Signed-off-by: Humberto Borba <humberos@gmail.com>
Change-Id: I96d58059cd739d3ce88382d2aeab0ac9efeb679d
aries-common: enable ksm as default option

Change-Id: I2e9a1b9d0f7d2a286b7e68b7f546ea256e2a9e04
Signed-off-by: Humberto Borba <humberos@gmail.com>
Merge branch 'android-4.4' of https://github.com/omnirom/android_device_samsung_aries-common into HEAD