Merge branch 'net-renesas-rswitch-fix-a-lot-of-redundant-irq-issue'

Yoshihiro Shimoda says:

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net: renesas: rswitch: Fix a lot of redundant irq issue

After this patch series was applied, a lot of redundant interrupts
no longer occur.

For example: when "iperf3 -c <ipaddr> -R" on R-Car S4-8 Spider
 Before the patches are applied: about 800,000 times happened
 After the patches were applied: about 100,000 times happened
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Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Paolo Abeni <[email protected]>