tools/nolibc: use 64-bit off_t

The kernel uses 64-bit values for file offsets.
Currently these might be truncated to 32-bit when assigned to
nolibc's off_t values.

Switch to 64-bit off_t consistently.

Suggested-by: Arnd Bergmann <[e-mail]>
Link: https://lore.kernel.org/lkml/[e-mail]/
Signed-off-by: Thomas Weißschuh <[e-mail]>
Acked-by: Willy Tarreau <[e-mail]>

tools/include/nolibc/std.h

···
 typedef unsigned int          uid_t;
 typedef unsigned int          gid_t;
 typedef unsigned long       nlink_t;
-typedef   signed long         off_t;
+typedef  int64_t              off_t;
 typedef   signed long     blksize_t;
 typedef   signed long      blkcnt_t;
 typedef __kernel_time_t      time_t;