[ARM] pxa: fix the incorrectly defined drive strength macros for pxa{168,910}

#include <mach/mfp.h>

#define MFP_DRIVE_VERY_SLOW	(0x0 << 13)

#define MFP_DRIVE_SLOW		(0x1 << 13)

#define MFP_DRIVE_MEDIUM	(0x2 << 13)

#define MFP_DRIVE_FAST		(0x3 << 13)

/* GPIO */

#define GPIO0_GPIO		MFP_CFG(GPIO0, AF5)

#define GPIO1_GPIO		MFP_CFG(GPIO1, AF5)

#include <mach/mfp.h>

#define MFP_DRIVE_VERY_SLOW	(0x0 << 13)

#define MFP_DRIVE_SLOW		(0x2 << 13)

#define MFP_DRIVE_MEDIUM	(0x4 << 13)

#define MFP_DRIVE_FAST		(0x8 << 13)

/* UART2 */

#define GPIO47_UART2_RXD	MFP_CFG(GPIO47, AF6)

#define GPIO48_UART2_TXD	MFP_CFG(GPIO48, AF6)

 * possible, we make the following compromise:

 *

 * 1. SLEEP_OE_N will always be programmed to '1' (by MFP_LPM_FLOAT)

 * 2. DRIVE strength definitions redefined to include the reserved bit10

 * 2. DRIVE strength definitions redefined to include the reserved bit

 *    - the reserved bit differs between pxa168 and pxa910, and the

 *      MFP_DRIVE_* macros are individually defined in mfp-pxa{168,910}.h

 * 3. Override MFP_CFG() and MFP_CFG_DRV()

 * 4. Drop the use of MFP_CFG_LPM() and MFP_CFG_X()

 */

#define MFP_DRIVE_VERY_SLOW	(0x0 << 13)

#define MFP_DRIVE_SLOW		(0x2 << 13)

#define MFP_DRIVE_MEDIUM	(0x4 << 13)

#define MFP_DRIVE_FAST		(0x8 << 13)

#undef MFP_CFG

#undef MFP_CFG_DRV

#undef MFP_CFG_LPM