Change PAL libary type to OBJECT

Author: emutavchi

Source/cmake/OptionsWPE.cmake

@@ -197,6 +197,7 @@ set(bmalloc_LIBRARY_TYPE OBJECT)
 set(WTF_LIBRARY_TYPE OBJECT)
 set(JavaScriptCore_LIBRARY_TYPE OBJECT)
 set(WebCore_LIBRARY_TYPE OBJECT)
+set(PAL_LIBRARY_TYPE OBJECT)
 
 # These are shared variables, but we special case their definition so that we can use the
 # CMAKE_INSTALL_* variables that are populated by the GNUInstallDirs macro.