Merge branch 'net-stmmac-rk-final-cleanups-part'

Russell King says:

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net: stmmac: rk: final cleanups part

This is the last part of my current dwmac-rk cleanups.
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Link: https://patch.msgid.link/aYMN2gZMfLPKuukG@shell.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: kuba-moo