Revert "module.h: split out the EXPORT_SYMBOL into export.h"

This reverts commit d675893572bf7b325cf2203aa847ce8084c5b779.
ruby: fix up kgsl for reverting module.h change

The commit to split up the module.h breaks ti wlan building during the compilation of CyanogenMod so by changing the kgsl include it no longer needs the commit to split up module.h