wcnss: Avoid writing zero to PMU config register

Avoid writing zero to PMU config register while
taking MUX control.

Change-Id: Ib05cd43a8d3bc4df27e27fef9e1539834d72e77a
CRs-Fixed: 794268
Signed-off-by: Hardik Kantilal Patel <hkpatel@codeaurora.org>
1 file changed