CMakeLists: Normalize whitespace

Normalizes tabs to spaces to follow our codebase's indentation style.

Source/Core/VideoBackends/OGL/CMakeLists.txt

@@ -1,27 +1,29 @@
 set(SRCS
-	   BoundingBox.cpp
-	   FramebufferManager.cpp
-	   main.cpp
-	   NativeVertexFormat.cpp
-	   PerfQuery.cpp
-	   PostProcessing.cpp
-	   ProgramShaderCache.cpp
-	   RasterFont.cpp
-	   Render.cpp
-	   SamplerCache.cpp
-	   StreamBuffer.cpp
-	   TextureCache.cpp
-	   TextureConverter.cpp
-	   VertexManager.cpp)
+  BoundingBox.cpp
+  FramebufferManager.cpp
+  main.cpp
+  NativeVertexFormat.cpp
+  PerfQuery.cpp
+  PostProcessing.cpp
+  ProgramShaderCache.cpp
+  RasterFont.cpp
+  Render.cpp
+  SamplerCache.cpp
+  StreamBuffer.cpp
+  TextureCache.cpp
+  TextureConverter.cpp
+  VertexManager.cpp
+)
 
-set(LIBS	${LIBS}
-			videocommon
-			SOIL
-			common
-			${X11_LIBRARIES})
+set(LIBS ${LIBS}
+  videocommon
+  SOIL
+  common
+  ${X11_LIBRARIES}
+)
 
 if(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD|NetBSD")
-	set(LIBS	${LIBS} usbhid)
+  set(LIBS ${LIBS} usbhid)
 endif()
 
 add_dolphin_library(videoogl "${SRCS}" "${LIBS}")