[EFL] Fix build failure, linker does not find libXext.
https://bugs.webkit.org/show_bug.cgi?id=144100

Patch by Hyungwook Lee <hyungwook.lee@navercorp.com> on 2015-05-20
Reviewed by Gyuyoung Kim.

Move Xext library from WebProcess_LIBRARIES to WebKit2_LIBRARIES.

* PlatformEfl.cmake:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@184632 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/WebKit2/PlatformEfl.cmake b/Source/WebKit2/PlatformEfl.cmake
index 59a1ff0..8dffe1d 100644
--- a/Source/WebKit2/PlatformEfl.cmake
+++ b/Source/WebKit2/PlatformEfl.cmake
@@ -345,10 +345,10 @@
 if (ENABLE_ECORE_X)
     list(APPEND WebProcess_LIBRARIES
         ${ECORE_X_LIBRARIES}
-        ${X11_Xext_LIB}
     )
     list(APPEND WebKit2_LIBRARIES
         ${ECORE_X_LIBRARIES}
+        ${X11_Xext_LIB}
     )
 endif ()