LU-1199 build: Fix osd modules' Requires fields

Fix the Requires field of the osd modules to allow for differing
lustre package name.

NOTE: This should be merged with:

  LU-1199 build: Overhaul lustre spec file and rpm build process

Change-Id: Ifd99f1c5d40962e3275a60def74261d4c09bb95a
Signed-off-by: Christopher J. Morrone <morrone2@llnl.gov>