drivers/i2c/generic: Add option to generate proper PowerResource _STA

The _STA method of drivers/i2c/generic PowerResource currently always
returns true. To allow generating _STA that returns the device's actual
power state, this CL adds a new boolean option `use_gpio_for_status` to
the `drivers_i2c_generic_config` struct, and propagates the value to
`acpi_power_res_params` to reuse the feature implemented for acpi/device
in [1].

[1] https://review.coreboot.org/c/coreboot/+/55027

BUG=b:397355818
TEST=Dump SSDT on redrix with CB:86749

Change-Id: I5c0a423730788d634a780d1d1d8c87a7007cc150
Signed-off-by: Momoko Hattori <momohatt@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86759
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Sam McNally <sammc@google.com>

src/drivers/i2c/generic/chip.h

@@ -110,6 +110,12 @@ struct drivers_i2c_generic_config {
 	/* Generic properties for exporting device-specific data to the OS */
 	struct acpi_dp property_list[MAX_GENERIC_PROPERTY_LIST];
 	int property_count;
+
+	/* Write a _STA method that uses the state of the GPIOs to determine if
+	 * the PowerResource is ON or OFF. If this is false, the _STA method
+	 * will always return ON.
+	 */
+	bool use_gpio_for_status;
 };
 
 /*

src/drivers/i2c/generic/generic.c

@@ -141,7 +141,8 @@ void i2c_generic_fill_ssdt(const struct device *dev,
 			config->enable_off_delay_ms,
 			&config->stop_gpio,
 			config->stop_delay_ms,
-			config->stop_off_delay_ms
+			config->stop_off_delay_ms,
+			config->use_gpio_for_status
 		};
 		acpi_device_add_power_res(&power_res_params);
 	}