gpio: generic: move GPIO_GENERIC_ flags to the correct header

These flags are specific to gpio-mmio and belong in linux/gpio/generic.h
so move them there.

Link: https://lore.kernel.org/r/20250917-gpio-generic-flags-v1-2-69f51fee8c89@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Author: Bartosz Golaszewski

include/linux/gpio/driver.h

@@ -684,16 +684,6 @@ int gpiochip_populate_parent_fwspec_fourcell(struct gpio_chip *gc,
 
 #endif /* CONFIG_IRQ_DOMAIN_HIERARCHY */
 
-#define GPIO_GENERIC_BIG_ENDIAN			BIT(0)
-#define GPIO_GENERIC_UNREADABLE_REG_SET		BIT(1) /* reg_set is unreadable */
-#define GPIO_GENERIC_UNREADABLE_REG_DIR		BIT(2) /* reg_dir is unreadable */
-#define GPIO_GENERIC_BIG_ENDIAN_BYTE_ORDER	BIT(3)
-#define GPIO_GENERIC_READ_OUTPUT_REG_SET	BIT(4) /* reg_set stores output value */
-#define GPIO_GENERIC_NO_OUTPUT			BIT(5) /* only input */
-#define GPIO_GENERIC_NO_SET_ON_INPUT		BIT(6)
-#define GPIO_GENERIC_PINCTRL_BACKEND		BIT(7) /* Call pinctrl direction setters */
-#define GPIO_GENERIC_NO_INPUT			BIT(8) /* only output */
-
 #ifdef CONFIG_GPIOLIB_IRQCHIP
 int gpiochip_irqchip_add_domain(struct gpio_chip *gc,
 				struct irq_domain *domain);

include/linux/gpio/generic.h

@@ -9,6 +9,16 @@
 
 struct device;
 
+#define GPIO_GENERIC_BIG_ENDIAN			BIT(0)
+#define GPIO_GENERIC_UNREADABLE_REG_SET		BIT(1) /* reg_set is unreadable */
+#define GPIO_GENERIC_UNREADABLE_REG_DIR		BIT(2) /* reg_dir is unreadable */
+#define GPIO_GENERIC_BIG_ENDIAN_BYTE_ORDER	BIT(3)
+#define GPIO_GENERIC_READ_OUTPUT_REG_SET	BIT(4) /* reg_set stores output value */
+#define GPIO_GENERIC_NO_OUTPUT			BIT(5) /* only input */
+#define GPIO_GENERIC_NO_SET_ON_INPUT		BIT(6)
+#define GPIO_GENERIC_PINCTRL_BACKEND		BIT(7) /* Call pinctrl direction setters */
+#define GPIO_GENERIC_NO_INPUT			BIT(8) /* only output */
+
 /**
  * struct gpio_generic_chip_config - Generic GPIO chip configuration data
  * @dev: Parent device of the new GPIO chip (compulsory).