overlays/corectrl: init; fixes build failure on linux 6.6

overlays/patches/corectrl.patch

@@ -0,0 +1,21 @@
+diff --git a/src/helper/CMakeLists.txt b/src/helper/CMakeLists.txt
+index 3fe2ace..2542ea1 100644
+--- a/src/helper/CMakeLists.txt
++++ b/src/helper/CMakeLists.txt
+@@ -22,15 +22,7 @@ message("D-Bus files will be installed into ${DBUS_DATADIR_PREFIX_DIR}/dbus-1")
+ 
+ # Find polkit
+ pkg_check_modules(POLKIT REQUIRED polkit-gobject-1)
+-execute_process(
+-  COMMAND pkg-config --variable=policydir polkit-gobject-1
+-  RESULT_VARIABLE POLKIT_POLICY_INSTALL_DIR_RESULT
+-  OUTPUT_VARIABLE POLKIT_POLICY_INSTALL_DIR
+-  OUTPUT_STRIP_TRAILING_WHITESPACE
+-)
+-if(NOT POLKIT_POLICY_INSTALL_DIR_RESULT EQUAL "0")
+-  message(FATAL_ERROR "Failed to retrieve Polkit `policydir` variable using pkg-config")
+-endif()
++option(POLKIT_POLICY_INSTALL_DIR "Polkit policy directory")
+ 
+ list(APPEND HELPER_COMPILE_DEFINITIONS
+   ELPP_THREAD_SAFE