octeontx2-af: Use separate handlers for interrupts

commit f0503a3ec644430bf6b2c0316f16cc1a4d782272 from
git@git.assembla.com:cavium/WindRiver.linux.git

For PF to AF interrupt vector and VF to AF vector same
interrupt handler is registered which is causing race condition.
When two interrupts are raised to two CPUs at same time
then two cores serve same event corrupting the data.

Change-Id: I6c9b8cd67967d4860b0f500ed1e8a120d2f15e6e
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/kernel/linux/+/121054
Tested-by: sa_ip-sw-jenkins <sa_ip-sw-jenkins@marvell.com>
Reviewed-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: Ruiqiang Hao <Ruiqiang.Hao@windriver.com>