pinctrl: qcom: sdm670: change sdm670_reserved_gpios to static

sdm670_reserved_gpios is only used in pinctrl-sdm670.c now, change it
to static.

Fixes: 61164d22 ("pinctrl: qcom: add sdm670 pinctrl")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221020075650.1031228-1-yangyingliang@huawei.comAcked-by: Richard Acayan <mailingradian@gmail.com>
[Fix up subject]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/qcom/pinctrl-sdm670.c

@@ -1294,7 +1294,7 @@ static const struct msm_pingroup sdm670_groups[] = {
 	SDC_QDSD_PINGROUP(sdc2_data, 0x9a000, 9, 0),
 };
 
-const int sdm670_reserved_gpios[] = {
+static const int sdm670_reserved_gpios[] = {
 	58, 59, 60, 61, 62, 63, 64, 69, 70, 71, 72, 73, 74, 104, -1
 };