commit 6c69b7e6356d99fdc4d8d0b46fb4b4408ada4223
author Michael Ellerman <mpe@ellerman.id.au> Tue Dec 12 13:15:04 2017 +1100
committer Joel Stanley <joel@jms.id.au> Tue Dec 12 18:51:59 2017 +1030
tree b84e336c5ac33f5ec8a71285c617e7ea90115645
parent 15a77aeba69438e86edef7119aebe9e173201213

kernel-build: Actually return the result of the build

We discard the result of docker run, so the script always returns
success (the result of echo).

Fix it by saving the result of docker run and making that the result
of the script.

Change-Id: I375613ff09d231e267be271245ce3dd20ff2bed3
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Joel Stanley <joel@jms.id.au>