Change in flashrom[master]: programmer.h: Convert anon union to anon struct

[Edward O'Callaghan (Code Review)]

Attention is currently required from: Stefan Reinauer, Edward O'Callaghan, Angel Pons, Anastasia Klimchuk.
Hello Sam McNally, build bot (Jenkins), Alan Green, Stefan Reinauer, Angel Pons, Anastasia Klimchuk,

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

https://review.coreboot.org/c/flashrom/+/50246

to look at the new patch set (#4).

Change subject: programmer.h: Convert anon union to anon struct
......................................................................

programmer.h: Convert anon union to anon struct

Convert the anon union of registered masters in the mst
field of the flashctx to a anon struct. If we are going
to dereference a pointer there in an undefined way we
should crash and not plow ahead with invalid memory.

The user of the registered_masters type is therefore
responsible for querying the buses_supported field before
attempting to dereference a ptr field in the anon struct.

BUG=b:175849641
TEST=`flashrom -p internal --flash-name`

Change-Id: I576967a8599b923c902e39f177f39146291cc242
Signed-off-by: Edward O'Callaghan 
---
M opaque.c
M programmer.c
M programmer.h
M spi.c
4 files changed, 5 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/46/50246/4