Add TI TCA9554 to supported devices table

Signed-off-by: Nikolay Balandin <nbalandin@dev.rtsoft.ru>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpio-pcf857x.c b/drivers/gpio/gpio-pcf857x.c
index a19b745..a965620 100644
--- a/drivers/gpio/gpio-pcf857x.c
+++ b/drivers/gpio/gpio-pcf857x.c
@@ -45,6 +45,7 @@
 	{ "pca9675", 16 },
 	{ "max7328", 8 },
 	{ "max7329", 8 },
+	{ "tca9554", 8 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, pcf857x_id);