[MIPS] Follow Uli's latest *at syscall changes.

(This really is only the half of the patch which was forgotten in
326a625748535c4cdb1c632b1dcb07030989a393 ...)
    
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

include/asm-mips/unistd.h

@@ -313,7 +313,7 @@
 #define __NR_mknodat			(__NR_Linux + 290)
 #define __NR_fchownat			(__NR_Linux + 291)
 #define __NR_futimesat			(__NR_Linux + 292)
-#define __NR_newfstatat			(__NR_Linux + 293)
+#define __NR_fstatat			(__NR_Linux + 293)
 #define __NR_unlinkat			(__NR_Linux + 294)
 #define __NR_renameat			(__NR_Linux + 295)
 #define __NR_linkat			(__NR_Linux + 296)
@@ -593,7 +593,7 @@
 #define __NR_mknodat			(__NR_Linux + 249)
 #define __NR_fchownat			(__NR_Linux + 250)
 #define __NR_futimesat			(__NR_Linux + 251)
-#define __NR_newfstatat			(__NR_Linux + 252)
+#define __NR_fstatat			(__NR_Linux + 252)
 #define __NR_unlinkat			(__NR_Linux + 253)
 #define __NR_renameat			(__NR_Linux + 254)
 #define __NR_linkat			(__NR_Linux + 255)
@@ -877,7 +877,7 @@
 #define __NR_mknodat			(__NR_Linux + 253)
 #define __NR_fchownat			(__NR_Linux + 254)
 #define __NR_futimesat			(__NR_Linux + 255)
-#define __NR_newfstatat			(__NR_Linux + 256)
+#define __NR_fstatat			(__NR_Linux + 256)
 #define __NR_unlinkat			(__NR_Linux + 257)
 #define __NR_renameat			(__NR_Linux + 258)
 #define __NR_linkat			(__NR_Linux + 259)