cmake: reset CMAKE_REQUIRED_INCLUDES/CMAKE_REQUIRED_LIBRARIES

(cherry picked from commit f69f41056fc8cd8a70b38024f255e9074af20bdc)
diff --git a/cmake/modules/FindLIBOPENJPEG.cmake b/cmake/modules/FindLIBOPENJPEG.cmake
index ab1721d..d9c1369 100644
--- a/cmake/modules/FindLIBOPENJPEG.cmake
+++ b/cmake/modules/FindLIBOPENJPEG.cmake
@@ -39,6 +39,9 @@
 }
 " WITH_OPENJPEG_IGNORE_PCLR_CMAP_CDEF_FLAG)
 
+  set(CMAKE_REQUIRED_INCLUDES)
+  set(CMAKE_REQUIRED_LIBRARIES)
+
     set(LIBOPENJPEG_FOUND TRUE)
   endif(LIBOPENJPEG_INCLUDE_DIR AND LIBOPENJPEG_LIBRARIES)