Revert "slimbus: fix-up 2:"

This reverts commit cea9c0eef53b4528cd4421e64b5913bbdd25148c.
Revert "fix-up poons commits"

This reverts commit 9a07a5fca1f79c34b11dd51e7f8ace162ece7ac6.
Revert "DRIVERS: SLIMBUS: some more tweaks:"

This reverts commit b18f301114c5cc42733c66545ce941ab4fb1dd30.