defconfigs/xfs_reflink_ab: this add AB support through a defconfig #66

Job	Run time
Build kdevops Container (debian)	2m 13s
Build kdevops Container (fedora)	2m 0s
Build kdevops Container (opensuse)	1m 57s
Linux A/B Tests (debian)	1m 3s
Linux A/B Tests (opensuse)	51s
Linux A/B Tests (fedora)	47s
Quick Config Tests (blktests_nvme) on fedora	46s
Quick Config Tests (blktests_nvme) on opensuse	47s
Quick Config Tests (xfs_reflink_4k) on fedora	42s
Quick Config Tests (blktests_nvme) on debian	54s
Quick Config Tests (xfs_reflink_4k) on debian	54s
Quick Config Tests (lbs-xfs) on fedora	45s
Quick Config Tests (xfs_reflink_4k) on opensuse	46s
Quick Config Tests (linux-ab-testing) on opensuse	50s
Quick Config Tests (lbs-xfs) on opensuse	49s
Quick Config Tests (lbs-xfs) on debian	1m 7s
Quick Config Tests (linux-ab-testing) on fedora	45s
Quick Config Tests (linux-ab-testing) on debian	49s
	18m 45s

Provide feedback