drivers/net/tokenring: fix warning: format not a string literal and no ...

Impact: Use 'static const char[]' instead of 'static char[]'.

Fix this warnings:
  drivers/net/tokenring/smctr.c:3644: warning: format not a string literal and no format arguments
Signed-off-by: NHannes Eder <hannes@hanneseder.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/tokenring/smctr.c

@@ -61,7 +61,8 @@
 
 #include "smctr.h"               /* Our Stuff */
 
-static char version[] __initdata = KERN_INFO "smctr.c: v1.4 7/12/00 by jschlst@samba.org\n";
+static const char version[] __initdata =
+	KERN_INFO "smctr.c: v1.4 7/12/00 by jschlst@samba.org\n";
 static const char cardname[] = "smctr";