dm: use printk ratelimiting functions
DM provided its own ratelimiting printk wrapper but given printk
advances this is no longer needed.
Also, switching DMDEBUG_LIMIT to using pr_debug_ratelimited() fixes the
reported issue where DMDEBUG_LIMIT() still caused a flood of "callbacks
suppressed" messages.
Reported-by: Milan Broz <gmazyland@gmail.com>
Depends-on:
29fc2bc7539386 ("printk: pr_debug_ratelimited: check state first to reduce "callbacks suppressed" messages")
Signed-off-by: Mike Snitzer <snitzer@redhat.com>