Merge branch 'ibmvnic-regression'

Juliet Kim says:

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Support both XIVE and XICS modes in ibmvnic

This series aims to support both XICS and XIVE with avoiding
a regression in behavior when a system runs in XICS mode.

Patch 1 reverts commit 11d49ce9f7946dfed4dcf5dbde865c78058b50ab
(“net/ibmvnic: Fix EOI when running in XIVE mode.”)

Patch 2 Ignore H_FUNCTION return from H_EOI to tolerate XIVE mode
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Signed-off-by: David S. Miller <davem@davemloft.net>