intel_sync_upstream: Add RPL EDK2 support

Add support on RPL for merging the EDK2
from the new -intelcollab repos.

BUG=b:239518970
TEST=Created merges and review for both edk2 and edk2-platforms

Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/3764040
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Commit-Queue: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: YH Lin <yueherngl@chromium.org>
Tested-by: Nick Vaccaro <nvaccaro@google.com>
Change-Id: I0062e99fd94054b22e3eabe7e06bc279ef734ae6
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/3945889
Commit-Queue: Ofer Fried <oferfried@google.com>
Tested-by: Ofer Fried <oferfried@google.com>