Fixed bug 3959 - cmake build broken by commit 11702 (7fdbffd47c0e) due to typo

Mate Nagy
There is a typo in CMakeLists.txt that makes CMake exit with failure.

Change that causes the problem: (Notice the double ending brackets)
   ${SDL2_SOURCE_DIR}/src/video/*.c)
+  ${SDL2_SOURCE_DIR}/src/video/yuv2rgb/*.c)

Fix:
Just remove the first ending bracket resulting in:
   ${SDL2_SOURCE_DIR}/src/video/*.c
   ${SDL2_SOURCE_DIR}/src/video/yuv2rgb/*.c)

CMakeLists.txt

@@ -356,7 +356,7 @@ file(GLOB SOURCE_FILES
   ${SDL2_SOURCE_DIR}/src/stdlib/*.c
   ${SDL2_SOURCE_DIR}/src/thread/*.c
   ${SDL2_SOURCE_DIR}/src/timer/*.c
-  ${SDL2_SOURCE_DIR}/src/video/*.c)
+  ${SDL2_SOURCE_DIR}/src/video/*.c
   ${SDL2_SOURCE_DIR}/src/video/yuv2rgb/*.c)