sunxi: Drop use of lowlevel_init()

This does nothing now, so drop it. We have SPL anyway to do our low-level
init.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

include/configs/sunxi-common.h

@@ -109,6 +109,7 @@
 #define CONFIG_SYS_PBSIZE	1024	/* Print Buffer Size */
 #define CONFIG_SYS_MAXARGS	16	/* max number of command args */
 #define CONFIG_SYS_GENERIC_BOARD
+#define CONFIG_SKIP_LOWLEVEL_INIT
 
 /* Boot Argument Buffer Size */
 #define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE