alpha: implement various OSF/1 stat syscalls

This implements OSF/1 versions of stat, lstat, fstat, statfs64,
and fstatfs64 syscalls.

Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
index 2207fc6..d1f23b7 100644
--- a/arch/alpha/include/asm/unistd.h
+++ b/arch/alpha/include/asm/unistd.h
@@ -203,6 +203,12 @@
 #define __NR_osf_security	222	/* not implemented */
 #define __NR_osf_kloadcall	223	/* not implemented */
 
+#define __NR_osf_stat		224
+#define __NR_osf_lstat		225
+#define __NR_osf_fstat		226
+#define __NR_osf_statfs64	227
+#define __NR_osf_fstatfs64	228
+
 #define __NR_getpgid		233
 #define __NR_getsid		234
 #define __NR_sigaltstack	235