mfd: pm8xxx-pwm: correct the 1KHz clock value

1kHz clock in PWM module is 1024Hz, instead of 1000Hz.
It is derived from sleep clock,

Change-Id: Ifd61985469fc485e913fe5474e422e53746f784d
Signed-off-by: Willie Ruan <wruan@codeaurora.org>
1 file changed