m7-common: Enable Ambient Display

This will make Ambient Display to appears on Settings and works on m7.
Adopted from http://gerrit.aicp-rom.com/#/c/3767/

Change-Id: Icf40351b72b11042d36862bef6c0ad993698c9da
Signed-off-by: Hernán Castañón Álvarez <hernanderes34@gmail.com>
m7-common: Disable DOZE feature by default

Change-Id: I879ee30b970291740fd988dea66458384495fbeb
m7-common: Fix "pick-up" on Ambient Display

Can be set to "true" If "display ON" on motion is wanted.
** Remove unrelated strings.xml

Change-Id: Ib3d38e34dc140043169bbe3d0bd65bbad246eae2