pinctrl: meson: meson8: rename the "gpio" function to "gpio_periphs"

Rename the existing "gpio" function to "gpio_periphs". This makes it
consistent with the "gpio_aobus" function. Also GXBB and GXL are also
using the "gpio_periphs" naming, so this makes the code here consistent
with other Amlogic pinctrl drivers.

No functional changes since thee "gpio" function is currently not used.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/meson/pinctrl-meson8b.c

@@ -622,7 +622,7 @@ static struct meson_pmx_group meson8b_aobus_groups[] = {
 	GROUP(i2s_lr_clk_in,	0,	14),
 };
 
-static const char * const gpio_groups[] = {
+static const char * const gpio_periphs_groups[] = {
 	"GPIOX_0", "GPIOX_1", "GPIOX_2", "GPIOX_3", "GPIOX_4",
 	"GPIOX_5", "GPIOX_6", "GPIOX_7", "GPIOX_8", "GPIOX_9",
 	"GPIOX_10", "GPIOX_11", "GPIOX_16", "GPIOX_17", "GPIOX_18",
@@ -839,7 +839,7 @@ static const char * const tsin_b_groups[] = {
 };
 
 static struct meson_pmx_func meson8b_cbus_functions[] = {
-	FUNCTION(gpio),
+	FUNCTION(gpio_periphs),
 	FUNCTION(sd_a),
 	FUNCTION(sdxc_a),
 	FUNCTION(pcm_a),