riscv: dts: spacemit: Update UART compatible for k1

Update UART compatible in k1 dts to "intel,xscale-uart", introduced in
commit 2d84e1519c5b ("serial: ns16550: Add Intel XScale support")
recently, aligning dts with the upstream kernel.

Tested-by: Huan Zhou <me@per1cycle.org>
Signed-off-by: Junhui Liu <junhui.liu@pigmoral.tech>
Reviewed-by: Yixun Lan <dlan@gentoo.org>
1 file changed