Most IRQ-related code is duplicated in the driver. Switch to the new
implementation and remove unused members.

While the change is non-trivial, from functional perspective status quo
is achieved.
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20240419084857.2719593-3-cezary.rojewski@intel.comSigned-off-by: Mark Brown <broonie@kernel.org>