Refactor the boot flags decoder:
* Add macros for boot flag bits, replace magic numbers in
the `chassis bootparam get 5` and in `chassis bootdev`
handlers.
The macros are prefixed with BFx_ where x stands for the
boot flags data byte as per IPMI 2.0 specification Table 28-14;
* Add decoding of remote/redirected media boot flags;
* Remove erroneous decoding of boot flags byte 3 bit 1 as
Sleep button lockout whereas the bit is a part of console
redirection setting;
* Fix console redirection settings reported under the 'BIOS verbosity'
header and vice versa;
* Fix resetting of all other boot flags in the data byte when
setting any of the bits in the same byte. This fixes inability
to set both 'efiboot' and 'persistent' bits at the same time,
and other similar cases.
Resolvesipmitool/ipmitool#163
Signed-off-by: Alexander Amelkin <alexander@amelkin.msk.ru>
4b89f1b42d