of/irq: export of_msi_get_domain

Export of_mis_get_domain to enable it for users from outside.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20200122104723.16955-1-peter.ujfalusi@ti.com


Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Link: https://lore.kernel.org/r/20220929234820.940048-2-khilman@baylibre.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>