arm64: dts: meson-axg: jethub-j1xx: Fix MAC address node names

arm64: dts: meson-axg: jethub-j1xx: Fix MAC address node names

[ Upstream commit 2f66eeb06e3e8b1cac9e9093be3baadbac2709eb ]

Node names should use hyphens instead of underscores to not cause
warnings.

Fixes: 59ec069d5055 ("arm64: dts: meson-axg: add support for JetHub D1p (j110)")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230111211350.1461860-4-martin.blumenstingl@googlemail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>