payloads/external/Linuxboot: Fix Makefile when not using bash

Adding "SHELL := /bin/bash" to the Makefile makes sure, that we use the
bash shell which is needed here.

Tested with oh-my-zsh.

Change-Id: I71495e15b8f1a495af7d8ab21cc5235feb595e01
Signed-off-by: Christian Walter <christian.walter@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33014
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions