Fix android build by fixing patch line endings

build/android/patches/irrlicht-back_button.patch

 --- irrlicht/source/Irrlicht/Android/CIrrDeviceAndroid.cpp.orig	2015-08-29 15:43:09.000000000 +0300
 +++ irrlicht/source/Irrlicht/Android/CIrrDeviceAndroid.cpp	2016-05-13 21:36:22.880388505 +0300
 @@ -486,7 +486,7 @@
- 				event.KeyInput.Char = 0;
- 			}
- 
--			device->postEventFromUser(event);
-+			status = device->postEventFromUser(event);
- 		}
- 		break;
- 		default:
+ 				event.KeyInput.Char = 0;
+ 			}
+ 
+-			device->postEventFromUser(event);
++			status = device->postEventFromUser(event);
+ 		}
+ 		break;
+ 		default:
 @@ -543,7 +543,7 @@
      KeyMap[1] = KEY_LBUTTON; // AKEYCODE_SOFT_LEFT
      KeyMap[2] = KEY_RBUTTON; // AKEYCODE_SOFT_RIGHT