davinci_sonata: define CONFIG_MACH_TYPE for davinci_sonata board

This patch fixes the build breakage for the davinci_sonata board.

Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Cc: Sergey Kubushyn <ksi@koi8.net>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
diff --git a/board/davinci/sonata/sonata.c b/board/davinci/sonata/sonata.c
index c194290..55110fb 100644
--- a/board/davinci/sonata/sonata.c
+++ b/board/davinci/sonata/sonata.c
@@ -34,9 +34,6 @@
 
 int board_init(void)
 {
-	/* arch number of the board */
-	gd->bd->bi_arch_number = MACH_TYPE_SONATA;
-
 	/* address of boot parameters */
 	gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
 
diff --git a/include/configs/davinci_sonata.h b/include/configs/davinci_sonata.h
index 74530e8..fc4d8ec 100644
--- a/include/configs/davinci_sonata.h
+++ b/include/configs/davinci_sonata.h
@@ -52,6 +52,8 @@
 #define CONFIG_SYS_NAND_SMALLPAGE
 #define CONFIG_SYS_USE_NOR
 #define CONFIG_DISPLAY_CPUINFO
+#define MACH_TYPE_SONATA 1254
+#define CONFIG_MACH_TYPE MACH_TYPE_SONATA
 /*===================*/
 /* SoC Configuration */
 /*===================*/