[coreboot] commit message for devcleanup

[ron minnich]

This was maybe missing.

Make it so that read_resources only reads resources.

dev_phase4 will call compute_allocate. This is an early pass at
making the device tree code a little more readable. We have done a
pass on the stage2 code and are comfortable with phases 1-3 and 5-6;
phase 4 is the phase that is really tough to follow. We are working
on cleaning that up today.

This change tested and working on dbe62.

We are well aware that as more complex targets appear this code
may break on them. At the same time, we are determined to untangle the
thicket of code in phase 4, since this code has been a source of
confusion for several years now.

Signed-off-by: Ronald G. Minnich