Patch for Lustre Networking Reorganization

Patch for Lustre Networking Reorganization

DONE:
1. Fixing of building both lnet and portals
2. Fixing of conflicting symbols in lnet and portals
   - exported APIs of lnet/libcfs with name like ptl_* are renamed to libcfs_*
   - exported APIs of lnet/lnet with name like ptl_* are renamed to lnet_*
   - exported APIs of portals/libcfs with name like libcfs_* are renamed to libptl_*
   - modules name of portals/libcfs/libcfs.ko to portals/libcfs/libptl.ko
3. /proc entry for lnet is /proc/sys/lnet
4. Listen port of socklnd is 988, listen port of socknal is 989
5. Pseudo device for lnet is /dev/lnet
6. Fixing of build lnet/klnds/ptllnd
7. Fixing of module path and /proc path in lnet/utils lustre/utils lustre/tests

TODO:
1. Renaming of unexported symbols in lnet.
2. Renaming of types and macro
3. Add option for building portals
4. Misc fix and testing