ARM: sbc35_a9g20: re-add MACH_TYPE_SBC35_A9G20

MACH_TYPE_SBC35_A9G20 was removed from mach-types.h.
Add it to the board config file.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/include/configs/sbc35_a9g20.h b/include/configs/sbc35_a9g20.h
index 1e355a8..cdf8659 100644
--- a/include/configs/sbc35_a9g20.h
+++ b/include/configs/sbc35_a9g20.h
@@ -36,6 +36,9 @@
 #define CONFIG_ENV_IS_IN_EEPROM
 #endif
 
+#define MACH_TYPE_SBC35_A9G20		1848
+#define CONFIG_MACH_TYPE		MACH_TYPE_SBC35_A9G20
+
 /* ARM asynchronous clock */
 #define CONFIG_SYS_AT91_SLOW_CLOCK	32768		/* slow clock xtal */
 #define CONFIG_SYS_AT91_MAIN_CLOCK	12000000	/* 12.000 MHz crystal */