power: smb1360: Add 10mohm rsense configuration

Add configuration changes to charger and FG to support
a 10mOhm rsense resistor (default configuration is a
20mOhm resistor). Add a DT property to select this
configuration.

CRs-Fixed: 735606
Change-Id: I7c46820790e273b761e4f0c102579854592d2243
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>