ice: Do not check INTEVENT bit for OICR interrupts

ice: Do not check INTEVENT bit for OICR interrupts

According to the hardware spec, checking the INTEVENT bit isn't a
reliable way to detect if an OICR interrupt has occurred. This is
because this bit can be cleared by the hardware/firmware before the
interrupt service routine has run. So instead, just check for OICR
events every time.

Fixes: 940b61af02f4 ("ice: Initialize PF and setup miscellaneous interrupt")
Signed-off-by: Ben Shelton <[email protected]>
Signed-off-by: Anirudh Venkataramanan <[email protected]>
Tested-by: Tony Brelinski <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>