power: qpnp-smb5: fix POWER_SUPPLY_PROP_CHARGE_QNOVO_ENABLE property

Currently power supply property CHARGE_QNOVO_ENABLE always returns 0.
Fix this by properly reporting QNOVO status when power supply property
CHARGE_QNOVO_ENABLE is read.

Change-Id: Ia53f0448b8d9af97b8825a082b4fdc7067a75742
Signed-off-by: Shyam Kumar Thella <sthella@codeaurora.org>