drm/atomic: Better logging for atomic requests #4879

Job	Run time
format	14s
clippy-check	3m 35s
smithay-check-features	2m 58s
check-minimal	1m 11s
check-msrv	1m 6s
smithay-tests	2m 26s
anvil-check-features	2m 30s
Documentation on Github Pages	1m 6s
smallvil-check	51s
WLCS: Core tests	1m 16s
WLCS: Output tests	1m 11s
WLCS: Pointer input tests	1m 21s
WLCS: Bad Buffer Test	1m 9s
	20m 54s

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