dmaengine: altera-msgdma: use irq variant of spin_lock/unlock while invoking callbacks

As we first take the lock with spin_lock_irqsave in msgdma_tasklet, Lockdep
might complain about this. Inspired by commit 9558cf4a
("dmaengine: zynqmp_dma: fix lockdep warning in tasklet")

Signed-off-by: Olivier Dautricourt <olivierdautricourt@gmail.com>
Tested-by: Olivier Dautricourt <olivierdautricourt@gmail.com>
Suggested-by: Eric Schwarz <eas@sw-optimization.com>
Link: https://lore.kernel.org/r/20240608213216.25087-1-olivierdautricourt@gmail.com


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