If a manufacturer's IANA PEN (aka manufacturer ID) was above
65535, it wasn't reported properly. Luckily there are no such
IDs so far, the biggest is 54077 as of 2019/06/18.
There is, however, an ID 0xFFFFFE used by fake_ipmistack
for debug purposes, and it was not reported correctly.
This commit expands the value argument to string searching functions
from 16-bit to 32-bit to allow for any possible IANA PEN.
Fixes: 73d6af57827fc85e78c700ca1dff00b3dbc63948
Signed-off-by: Alexander Amelkin <alexander@amelkin.msk.ru>