arm/mach-ux500: fix repeated words in comments

Delete the redundant word 'in'.
Signed-off-by: wangjianli <wangjianli@cdjrlc.com>
Link: https://lore.kernel.org/r/20221020124558.38060-1-wangjianli@cdjrlc.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/mach-ux500/pm.c

@@ -124,7 +124,7 @@ bool prcmu_pending_irq(void)
 }
 
 /*
- * This function checks if the specified cpu is in in WFI. It's usage
+ * This function checks if the specified cpu is in WFI. It's usage
  * makes sense only if the gic is decoupled with the db8500_prcmu_gic_decouple
  * function. Of course passing smp_processor_id() to this function will
  * always return false...