[SeaBIOS] Next stable release

[Kevin O'Connor]

I plan to backport the 5 fixes below to the stable branch and tag it
as v1.6.3.2.  Let me know if there are any concerns or additional
changes needed.

-Kevin

Kevin O'Connor (5):
  Add PYTHON definition to Makefile.
  Permit .rodata.__PRETTY_FUNCTION__. sections in roms.
  BCVs should inherrit the legacy harddrive priority.
  Fix missing NULL pointer checks causing boot failure on 1meg
    machines.
  Use "#!/bin/sh" instead of ":" in tools/gen-offsets.sh.

Makefile             |    7 ++++---
 src/boot.c           |    2 +-
 src/pmm.c            |    3 ++-
 tools/gen-offsets.sh |    2 +-
 tools/layoutrom.py   |   12 ++++++++----
 5 files changed, 16 insertions(+), 10 deletions(-)