Modules: Use "windres" as rc compiler base name for cross-compiles (#12480)

...if it matches "windres", as opposed to being exactly equal to "windres"

Cross-compiling windres compilers are named something like
"i686-w64-mingw32-windres" (for example)

Modules/CMakeRCInformation.cmake

@@ -20,6 +20,9 @@
 # make sure we don't use CMAKE_BASE_NAME from somewhere else
 SET(CMAKE_BASE_NAME)
 GET_FILENAME_COMPONENT(CMAKE_BASE_NAME ${CMAKE_RC_COMPILER} NAME_WE)
+IF("${CMAKE_BASE_NAME}" MATCHES "windres")
+  SET(CMAKE_BASE_NAME "windres")
+ENDIF()
 SET(CMAKE_SYSTEM_AND_RC_COMPILER_INFO_FILE
   ${CMAKE_ROOT}/Modules/Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_BASE_NAME}.cmake)
 INCLUDE(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_BASE_NAME} OPTIONAL)