power: supply: qpnp-fg-gen4: Skip irrelevant Type-C Mode request

I have no idea who is querying PROP_TYPEC_MODE on a damn fuelgauge
driver (it maybe some proprietary services or HALs), we can get it
from fg->usb_psy but I think better just ignore it instead.

Change-Id: Ibf3acc0d09ce6540b8221bfdef885edd1f94fe4d
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>