mb/google/volteer/eldrid: Use #define symbols for usb2_ports config

It's easier to understand what these symbolic names mean rather than
using the constants; the static.c will will end up (indirectly)
including `soc/usb.h` therefore the macros are in scope here.

Change-Id: I5ef977a05a2522e177f32c99bfab74f9288ae869
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49488
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nick Chen <nick_xr_chen@wistron.corp-partner.google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>

0 files changed, 0 insertions, 0 deletions