mips: Fix mips64n32 64 bit time_t stat support (BZ#29069)

Add missing support initially added by 4e8521333b
(which missed n32 stat).

(cherry picked from commit 78fb888273)

NEWS

@@ -359,6 +359,8 @@ The following bugs are resolved with this release:
   [28837] libc: FAIL: socket/tst-socket-timestamp-compat
   [28847] locale: Empty mon_decimal_point in LC_MONETARY results in non-
     empty mon_decimal_point_wc
+  [29069] libc: fstatat64_time64_statx wrapper broken on MIPS N32 with
+    -D_FILE_OFFSET_BITS=64 and -D_TIME_BITS=64
 
 
 Version 2.34

sysdeps/unix/sysv/linux/mips/bits/struct_stat.h

@@ -131,6 +131,9 @@ struct stat64
 
 struct stat
   {
+# ifdef __USE_TIME_BITS64
+#  include <bits/struct_stat_time64_helper.h>
+# else
     __dev_t st_dev;
     int	st_pad1[3];		/* Reserved for st_dev expansion  */
 #  ifndef __USE_FILE_OFFSET64
@@ -180,11 +183,15 @@ struct stat
     __blkcnt64_t st_blocks;
 #  endif
     int st_pad5[14];
+# endif
   };
 
 #ifdef __USE_LARGEFILE64
 struct stat64
   {
+# ifdef __USE_TIME_BITS64
+#  include <bits/struct_stat_time64_helper.h>
+# else
     __dev_t st_dev;
     unsigned int st_pad1[3];	/* Reserved for st_dev expansion  */
     __ino64_t st_ino;
@@ -217,6 +224,7 @@ struct stat64
     unsigned int st_pad3;
     __blkcnt64_t st_blocks;
     int st_pad4[14];
+# endif /* __USE_TIME_BITS64  */
 };
 #endif