arm64: dts: mediatek: mt8186: Fix alias prefix for ovl_2l0

arm64: dts: mediatek: mt8186: Fix alias prefix for ovl_2l0

[ Upstream commit 6ed159e499bc2ebedf94c9086244220824e71672 ]

The alias prefix for ovl_2l (2 layer overlay) is "ovl-2l", not "ovl_2l".

Fix this.

Fixes: 7e07d3322de2 ("arm64: dts: mediatek: mt8186: Add display nodes")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20231130074032.913511-4-wenst@chromium.org
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>