Jit64: Attempt to fix updating stores with an immediate value

See https://bugs.dolphin-emu.org/issues/13144

Source/Core/Core/PowerPC/Jit64/Jit_LoadStore.cpp

@@ -510,7 +510,7 @@ void Jit64::stX(UGeckoInstruction inst)
       }
       else
       {
-        RCOpArg Ra = gpr.UseNoImm(a, RCMode::Write);
+        RCOpArg Ra = gpr.RevertableBind(a, RCMode::Write);
         RegCache::Realize(Ra);
         MemoryExceptionCheck();
         MOV(32, Ra, Imm32(addr));

Source/Core/Core/PowerPC/Jit64/Jit_LoadStoreFloating.cpp

@@ -144,7 +144,7 @@ void Jit64::stfXXX(UGeckoInstruction inst)
       }
       else
       {
-        RCOpArg Ra = gpr.UseNoImm(a, RCMode::Write);
+        RCOpArg Ra = gpr.RevertableBind(a, RCMode::Write);
         RegCache::Realize(Ra);
         MemoryExceptionCheck();
         MOV(32, Ra, Imm32(addr));