sdp4430: Initialize board id using CONFIG_MACH_TYPE

Use CONFIG_MACH_TYPE generic macro to set the machine type
number in the common arm code instead of setting it in the
board code.
Signed-off-by: NOleksandr Tyshchenko <oleksandr.tyshchenko@ti.com>

board/ti/sdp4430/sdp.c

@@ -28,7 +28,6 @@ int board_init(void)
 {
 	gpmc_init();
 
-	gd->bd->bi_arch_number = MACH_TYPE_OMAP_4430SDP;
 	gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */
 
 	return 0;

include/configs/omap4_sdp4430.h

@@ -17,6 +17,7 @@
  * High Level Configuration Options
  */
 #define CONFIG_4430SDP		1	/* working with SDP */
+#define CONFIG_MACH_TYPE	MACH_TYPE_OMAP_4430SDP
 
 #include <configs/omap4_common.h>