[IA64] palinfo.c: typo s/BEER/BERR/

- fix a typo in the file /proc/pal/CPU*/processor_info w.r.t.
  to BERR promotion. Initially reported by Danny Kwong from HP.
Signed-off-by: stephane eranian <eranian@hpl.hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

arch/ia64/kernel/palinfo.c

@@ -479,7 +479,7 @@ static const char *proc_features[]={
 	"Enable CMCI promotion",
 	"Enable MCA to BINIT promotion",
 	"Enable MCA promotion",
-	"Enable BEER promotion"
+	"Enable BERR promotion"
 };