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Add helper to get the drrs type as a string, and use it
in a couple of places. Also pimp the debugfs output a bit
while at it.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220311172428.14685-11-ville.syrjala@linux.intel.com

Reviewed-by: Jani Nikula <jani.nikula@intel.com>