regulator: drop unneeded dependencies on OF_GPIO

OF_GPIO is selected automatically on all OF systems. Any symbols it
controls also provide stubs so there's really no reason to select it
explicitly.

Acked-by: Mark Brown <broonie@kernel.org>
Link: https://patch.msgid.link/20260304-gpio-of-kconfig-v1-5-d597916e79e7@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>

Author: Bartosz Golaszewski

drivers/regulator/Kconfig

@@ -1232,7 +1232,6 @@ config REGULATOR_RASPBERRYPI_TOUCHSCREEN_ATTINY
 	depends on ARM || ARM64 || COMPILE_TEST
 	depends on BACKLIGHT_CLASS_DEVICE
 	depends on I2C
-	depends on OF_GPIO
 	select REGMAP_I2C
 	help
 	  This driver supports ATTINY regulator on the Raspberry Pi 7-inch
@@ -1332,7 +1331,6 @@ config REGULATOR_RT5133
 	depends on I2C && GPIOLIB && OF
 	select REGMAP
 	select CRC8
-	select OF_GPIO
 	help
 	  This driver adds support for RT5133 PMIC regulators.
 	  RT5133 is an integrated chip. It includes 8 LDOs and 3 GPOs that