arm64: dts: meson-gxm-khadas-vim2: fix uart_A bluetooth node

[ Upstream commit 388a2772979b625042524d8b91280616ab4ff5ee ]

Fixes: 33344e2111a3 ("arm64: dts: meson-gxm-khadas-vim2: fix Bluetooth support")
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>