Pull up following revision(s) (requested by phx in ticket #1059):
sys/arch/sandpoint/include/bootinfo.h: revision 1.9
sys/arch/sandpoint/stand/altboot/brdsetup.c: revisions 1.36, 1.37
sys/arch/sandpoint/stand/altboot/dsk.c: revision 1.18
sys/arch/sandpoint/stand/altboot/globals.h: revisions 1.20, 1.21
sys/arch/sandpoint/stand/altboot/main.c: revision 1.27
sys/arch/sandpoint/stand/altboot/siisata.c: revision 1.6
sys/arch/sandpoint/stand/altboot/version: revision 1.8
The disk's unittag is not equal to the channel, so we need an additional
unitchan entry to make lba_read() work in all cases.
The libsa-printf() does not seem to support 64-bit output, so cast the
block number to unsigned when printing an error message.
--
Pass a name and flags precisely describing the current model and its
features via a new bootinfo node (currently Synology only). This allows
for example the configuration of model-specific temperature I2C sensors
and fan control.
Support for the Synology DS207 and DS209 drive LEDs and wait until the
2nd drive is completely powered up.
--
fix a board type check logic error that affected Linkstation and Kurobox (HG).
They were mistakenly recognized kurot4 type and ended up with kernel boot
failure.

(snj)