manta: charging led support

also fixes always on

Change-Id: I6899de4bdb7296b5f0f7f6cb388149de6c175390
(cherry picked from commit c6d2195a9d918e6ac7c99c07da54f16a4b41c14e)
manta: fixup USB OTG

Change-Id: Ic7c47968d8e3659587270841466fc027460dae61
(cherry picked from commit 3efc1d7d44f831d4b4bead80124d8a8729ac3469)
fix conflicts with other devices

- i9500 and others

Change-Id: Ic58110bba477a9fcafc5402e050a84144175015d
(cherry picked from commit dde17e5a6fd28b9d3b60dd0aab4ac28abd89bda6)