net: dwc_eth_qos: Constify st, eth-* values parsed out of DT

Use const bool for the values parsed out of DT. Drop the duplicate
assignment of false into those bool variables, assign them directly
with the content parsed out of DT. Abbreviate the variable name too.

Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Marek Vasut <marex@denx.de>
1 file changed