gpio: (gpio-pca953x) move header to linux/platform_data/

This patch moves the pca953x.h header from include/linux/i2c to
include/linux/platform_data and updates existing support accordingly.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

arch/arm/mach-ep93xx/vision_ep9307.c

@@ -23,7 +23,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>
-#include <linux/i2c/pca953x.h>
+#include <linux/platform_data/pca953x.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
 #include <linux/spi/mmc_spi.h>