Fixes for clean compilation of NxWidgets/NxWM with Kconfig and changes to...

Fixes for clean compilation of NxWidgets/NxWM with Kconfig and changes to build system; Fixes to Shenzhou NxWM configuration for clean build

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5193 42af7a65-404d-4744-a932-0658087f49c3