Merge branch 'eth-fbnic-support-ring-size-configuration'

Jakub Kicinski says:

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eth: fbnic: support ring size configuration

Support ethtool -g / -G and a couple other small tweaks.
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Link: https://patch.msgid.link/20250306145150.1757263-1-kuba@kernel.org


Signed-off-by: Jakub Kicinski <kuba@kernel.org>