mfd: pm8xxx-spk: Fix the disable logic for pmic speaker driver

The pmic spk driver is not getting disabled due to wrong disble
logic.This results in spk driver always on.

CRs-Fixed: 376950
Change-Id: Ia1509f97ae1a3526732218492ff86063afe68137
Signed-off-by: Asish Bhattacharya <asishb@codeaurora.org>
1 file changed