soc: qcom: rpmh-rsc: Fix typo in a comment

The double `for' in the comment in line 694 is repeated. Remove one
of them from the comment.
Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211211090626.248801-1-wangborong@cdjrlc.com

drivers/soc/qcom/rpmh-rsc.c

@@ -691,7 +691,7 @@ static int find_slots(struct tcs_group *tcs, const struct tcs_request *msg,
  * @drv: The controller.
  * @msg: The data to be written to the controller.
  *
- * This should only be called for for sleep/wake state, never active-only
+ * This should only be called for sleep/wake state, never active-only
  * state.
  *
  * The caller must ensure that no other RPMH actions are happening and the