power: qpnp-fg-gen4: Add CC_SOC property

Add CC_SOC property to expose coulomb counter value in centi
percentage so that charger driver can make use of it for certain
workarounds.

Change-Id: Ic427c65f4602220088e97c811de1cfb32dfff8f9
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>