packagegroup-agl-core-devel: Add zstd

packagegroup-agl-core-devel: Add zstd

Add zstd as a development package, as it's required to decompress
coredumps on target with newer systemd.

Bug-AGL: SPEC-4736

Change-Id: I2dec559afd28c1b2c681ce4f918eeb640a79744a
Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/28661
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
Tested-by: Jenkins Job builder account
ci-image-build: Jenkins Job builder account
ci-image-boot-test: Jenkins Job builder account