Support for MUIC (Micro USB Integrated Circuit) built into the MAX8997
power management device.

The MUIC device will work with redesigned PMIC framework.
Signed-off-by: NLukasz Majewski <l.majewski@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Cc: Stefano Babic <sbabic@denx.de>