pinctrl: qcom: qcs404: Correct SDC tile

The SDC controls live in the south tile, not the north one. Correct this
so that we program the right registers.

Cc: stable@vger.kernel.org
Fixes: 22eb8301

 ("pinctrl: qcom: Add qcs404 pinctrl driver")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>