rust: alloc: fix typo in docs for GFP_NOWAIT

Fix a typo in alloc.rs by replacing Ror with For.
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Link: https://lore.kernel.org/r/20240529083452.779865-1-aliceryhl@google.comSigned-off-by: Miguel Ojeda <ojeda@kernel.org>

rust/kernel/alloc.rs

@@ -66,7 +66,7 @@ pub mod flags {
     /// The same as [`GFP_KERNEL`], except the allocation is accounted to kmemcg.
     pub const GFP_KERNEL_ACCOUNT: Flags = Flags(bindings::GFP_KERNEL_ACCOUNT);
 
-    /// Ror kernel allocations that should not stall for direct reclaim, start physical IO or
+    /// For kernel allocations that should not stall for direct reclaim, start physical IO or
     /// use any filesystem callback.  It is very likely to fail to allocate memory, even for very
     /// small allocations.
     pub const GFP_NOWAIT: Flags = Flags(bindings::GFP_NOWAIT);