i2c: mux: mlxcpld: Move header file out of x86 realm

Move out header file from include/linux/platform_data/x86/ to
include/linux/platform_data/, since it does not depend on x86
architecture.

Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Acked-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

drivers/i2c/muxes/i2c-mux-mlxcpld.c

@@ -11,7 +11,7 @@
 #include <linux/io.h>
 #include <linux/init.h>
 #include <linux/module.h>
-#include <linux/platform_data/x86/mlxcpld.h>
+#include <linux/platform_data/mlxcpld.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>