[COMMIT] sync up pass 3

First stab at synchronizing the questionable code.

The NLBConfig.py and getpir changes are safe simple changes.

The read_bytes.h and rom_fill_inbuf.c removes tag support from LinuxBIOS
altogether.  The code is in the baremetal toolkit so we should not need
it bloating the common code.

Eric

include/rom/read_bytes.h
- Remove baremetal toolkit code
src/rom/rom_fill_inbuf.c
- Remove tag support
util/config/NLBConfig.py
- Remove crt0.o from OBJECTS-1
util/getpir/Makefile
- set LINUXBSIOSROOT to an always working path