i2c: meson: add gxbb compatible string

Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com>
Signed-off-by: NJerome Brunet <jbrunet@baylibre.com>
Acked-by: NKevin Hilman <khilman@baylibre.com>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

Documentation/devicetree/bindings/i2c/i2c-meson.txt

 Amlogic Meson I2C controller
 
 Required properties:
- - compatible: must be "amlogic,meson6-i2c"
+ - compatible: must be "amlogic,meson6-i2c" or "amlogic,meson-gxbb-i2c"
  - reg: physical address and length of the device registers
  - interrupts: a single interrupt specifier
  - clocks: clock for the device

drivers/i2c/busses/i2c-meson.c

@@ -472,6 +472,7 @@ static int meson_i2c_remove(struct platform_device *pdev)
 
 static const struct of_device_id meson_i2c_match[] = {
 	{ .compatible = "amlogic,meson6-i2c" },
+	{ .compatible = "amlogic,meson-gxbb-i2c" },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, meson_i2c_match);