[PATCH] ARM: OMAP2+: PRM: initialize en_uart4_mask and grpsel_uart4_mask

[Tony Lindgren]

* Colin King <colin.king at canonical.com> [161024 04:01]:
> From: Colin Ian King <colin.king at canonical.com>
> 
> In the case where has_uart4 is false, en_uart4_mask and grpsel_uart4_mask
> are not initialized and so any garbage value is being logically or'd into
> the write of PM_WKEN and OMAP3430_PM_MPUGRPSEL.  Fix this by initializing
> these masks to zero.

Thanks applying into omap-for-v4.9/fixes.

Regards,

Tony