[LinuxBIOS] [PATCH][v3] small lar fix

[Patrick Georgi]

Hi,

the checksum creation in lar starts somewhere in the lar image, and ends at
the end of a temporary buffer, which doesn't look right to me (and
segfaults if between those two there's an unmapped region, as happened
here)

Attached patch should fix that, but I'd like to have someone look over it to
make sure it checksums the right area.

Regards,
Patrick Georgi