dev-install: filter out root bdepends

With the increase of BDEPENDS in ebuilds, the emerge output here has
changed to include both deps for the board & the SDK.  We need to
filter out the SDK deps as there are some that only show up there
and will never work for boards.

BUG=chromium:1072761, chromium:1108379, chromium:1170187
TEST=devinstall_test.py passes

Change-Id: I1ec3e120191a1a72de9fadfaee11e3fb22a66830
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosutils/+/2648863
Tested-by: Mike Frysinger <vapier@chromium.org>
Auto-Submit: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Ricky Liang <jcliang@chromium.org>
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
(cherry picked from commit 34df0d04eda35f4cda182ff1153d6d57b1cc7903)
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosutils/+/2651151
Reviewed-by: Mike Frysinger <vapier@chromium.org>
1 file changed