atm128 spi: fix a race condition in resource initialization (from Oldrine Lewis)
doc/policy/owners: update msp430, add mm5s (msp430f5438a)

- update msp430 owners nuke Arched Rock, add Eric Vlado

- add initial owner for mm5s platfrom, msp430f5438a
cc2420: add access to test registers
sdk/python/misc: add hexdump and serlook

hexdump and serlook are simple python tools for looking at serial data
coming from a mote.   This is very useful when bootstrapping a platform
or debugging a motenet/host gateway.
Merge remote-tracking branch 'tinyos-main/cc2420_testregs'

Signed-off-by: Miklos Maroti <mmaroti@gmail.com>
atm128rfa1: do the same spi fix as for the atm128
Merge branch 'atmega-spi'