Add attempt to fix suspend bug

payload/wwfcNatneg.cpp

@@ -65,4 +65,28 @@ s32 GT2CreateSocket(
     );
 }
 
+#if RMC
+// Attempt to fix the "suspend bug," where DWC stalls suspending the match due
+// to ongoing NATNEG between clients. This patch will ignore NATNEG and suspend
+// anyway if not the host.
+// Credit: MrBean35000vr
+WWFC_DEFINE_PATCH = {Patch::CallWithCTR(
+    WWFC_PATCH_LEVEL_BUGFIX | WWFC_PATCH_LEVEL_PARITY, //
+    RMCXD_PORT(0x800E77F4, 0x800E7754, 0x800E7714, 0x800E7854), //
+    ASM_LAMBDA(
+        // clang-format off
+        lbz     r0, 0x16(r31); // stpMatchCnt->hostState
+        cmpwi   r0, 0; // Not in a match
+        beqlr; // r0 = 0 will already fall through to 0x800E7814
+
+        cmpwi   r0, 1; // Client in room
+        beqlr; // r0 = 1 will already fall through to 0x800E781C
+
+        lwz     r0, 0x71C(r31); // stpMatchCnt->state
+        blr;
+        // clang-format on
+    )
+)};
+#endif // RMC
+
 } // namespace wwfc::Natneg