arm64: dts: meson-g12: remove spurious blank line

Remove spurious blank line introduced in f12a463d but was not part
of the original patch at [1].

[1] http://lore.kernel.org/r/20200313090713.15147-3-narmstrong@baylibre.com

Fixes: f12a463d ("arm64: dts: meson-g12: add the SPIFC nodes")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20200420080018.11607-1-narmstrong@baylibre.com

arch/arm64/boot/dts/amlogic/meson-g12.dtsi

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 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
 /*
  * Copyright (c) 2019 BayLibre, SAS