Reverted TC_GEONW_PON_FPB_BV_BV-06,7,8,10 to back to GBC - fix for...

Reverted TC_GEONW_PON_FPB_BV_BV-06,7,8,10 to back to GBC - fix for http://forge.etsi.org/mantis/view.php?id=7031.

Adapted implementation of f_GEONW_CAP_FPB_BV_02 to reduce number of sent messages.