nb/intel/sandybridge: Rename and clean up `discover_edges_write`

This is actually an (incomplete) aggressive read training algorithm.
Rename functions and variables accordingly, and tidy up declarations.

Tested on Asus P8H61-M PRO, still boots.

Change-Id: I8a4900f8e3acffe4e4d75a51a2588ad6b65eb411
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47679
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

0 files changed, 0 insertions, 0 deletions