x86: remove rdc321x_defs.h

This file is replaced by a cleaner version with the adding of a MFD driver for
the southbridge.
Signed-off-by: NFlorian Fainelli <florian@openwrt.org>
Acked-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

arch/x86/include/asm/rdc321x_defs.h

-#define PFX	"rdc321x: "
-
-/* General purpose configuration and data registers */
-#define RDC3210_CFGREG_ADDR     0x0CF8
-#define RDC3210_CFGREG_DATA     0x0CFC
-
-#define RDC321X_GPIO_CTRL_REG1	0x48
-#define RDC321X_GPIO_CTRL_REG2	0x84
-#define RDC321X_GPIO_DATA_REG1	0x4c
-#define RDC321X_GPIO_DATA_REG2	0x88
-
-#define RDC321X_MAX_GPIO	58