init-install: Fixes the install script failing when not finding any mmcblk devices
The init-install.sh and init-install-efi.sh scripts perform a check
to see which devices are available on a booted system for installation.
Recently, the way we check for these devices changed on 993bfb,
greping for devices found on /sys/block/, this change caused the installer
to fail (at least) when not finding any mmcblk devices, due to the fact
that we call sh -e to execute this script, so any command (grep)
or pipeline exiting with a non-zero status causes the whole script to exit
This patch throws in a harmless true exit status at the end of the pipeline(s)
of the grep commands to avoid the installer script from exiting, fixing the issue.
[YOCTO #10189]
Signed-off-by: Alejandro Hernandez <alejandro.hernandez@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
