mfd: db8500-prcmu: Drop duplicated word "the" in the comments

There is an unexpected word "the" in the comments that needs to be dropped.

Line 801: * This function sets the the operating point of the ARM.
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Signed-off-by: Jiang Jian <jiangjian@cdjrlc.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220621103839.96847-1-jiangjian@cdjrlc.com