arm: dts: aspeed: Add vuart aspeed,sirq-polarity-sense to aspeed-g5.dtsi

Enable auto-configuration of VUART SIRQ polarity on AST2500.

Signed-off-by: Oskar Senft <osk@google.com>
Link: https://lore.kernel.org/r/20190905144130.220713-3-osk@google.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>