[SPARC64]: Increase command line size to 2048 like other arches.

Signed-off-by: David S. Miller <davem@davemloft.net>

include/asm-sparc64/setup.h

@@ -5,6 +5,6 @@
 #ifndef _SPARC64_SETUP_H
 #define _SPARC64_SETUP_H
 
-#define COMMAND_LINE_SIZE	256
+#define COMMAND_LINE_SIZE	2048
 
 #endif /* _SPARC64_SETUP_H */