[S] Change in flashrom[master]: hwaccess_x86_io: Improve IO permission error messages

[Miklós Márton (Code Review)]

Attention is currently required from: Miklós Márton, Thomas Heijligen.

Hello build bot (Jenkins), Thomas Heijligen, Anastasia Klimchuk,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/flashrom/+/62878

to look at the new patch set (#5).

Change subject: hwaccess_x86_io: Improve IO permission error messages
......................................................................

hwaccess_x86_io: Improve IO permission error messages

- Display the BSD hints only when compiled for a specific BSD
- On Linux check the user's uid to see if flashrom run with
  root privileges
- Add a note about the dmesg check if the flashrom run as
  root and have no IO privilege

TEST=Run flashrom with internal programmed on a
Secure boot enabled machine. You should not get the
privilege level error, but rather a suggestion about
the security policies.

Change-Id: I6a6f60a5f0ac8f2b51c74661f7dad30571819680
Signed-off-by: Miklós Márton 
---
M hwaccess_x86_io.c
1 file changed, 35 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/78/62878/5