gnu: Set RLIM_INFINITY for mips with gnu_file_offset_bits64

(backport <rust-lang#4345>)
(cherry picked from commit 5c5c364)

Author: snogge

src/unix/linux_like/linux/arch/mips/mod.rs

@@ -379,8 +379,13 @@ cfg_if! {
 cfg_if! {
     if #[cfg(all(
         any(target_arch = "mips", target_arch = "mips32r6"),
-        any(target_env = "uclibc", target_env = "gnu"),
-        linux_time_bits64
+        any(
+            all(target_env = "uclibc", linux_time_bits64),
+            all(
+                target_env = "gnu",
+                any(linux_time_bits64, gnu_file_offset_bits64)
+            )
+        )
     ))] {
         pub const RLIM_INFINITY: crate::rlim_t = !0;
     } else if #[cfg(all(