power: smb1351-charger: Add snapshot of smb1351 charger driver

This is a snapshot of the SMB1351 support as of msm-3.18 commit
commit: f75272fec7b8d72327a00dea715b16d436b48da0
("Merge "dwc3: gadget: Return -EAGAIN from dwc_gadget_func_wakeup()"")

CRs-Fixed: 1086015
Change-Id: I259f6fdc4ab8bf04b5d16c0d1f58747510a02061
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>