arm64: dts: imx8qm-var-som-symphony: enable expansion header UART

Enable LPUART4 and configure its pin multiplexing to expose the UART
interface on the Symphony expansion header.

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
This commit is contained in:
Stefano Radaelli 2026-07-22 13:33:05 +02:00 • committed by Frank Li
commit 3c45ac08d2