fix some gcc warnings

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2590 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/DiscIO/Src/BannerLoaderGC.cpp

@@ -131,6 +131,8 @@ CBannerLoaderGC::GetName(std::string _rName[])
 
 		}
 		break;
+	default:
+		break;
 	}
 	
 	return returnCode;
@@ -196,6 +198,8 @@ CBannerLoaderGC::GetDescription(std::string* _rDescription)
 			returnCode = true;
 		}
 		break;
+	default:
+		break;
 	}
 	return returnCode;
 }