ASoC: wcd9330: Handle the port disconnect correctly

In irq handler driver goes through all irq register
status bits to check which interrupt has really
triggered. However hardware sets the irq status register
regardless of mask value set by the driver. This has
an un-intended consequence of stack dump in driver as
it was not expecting this interrupt.

Change-Id: I6958feefbbdda60b86b8ccaec13390afaae88428
Signed-off-by: Anish Kumar <kanish@codeaurora.org>