board: qualcomm: phone: fix 'Dump bootargs'

This menu option wasn't dumping /chosen, because no FDT addr had been
set yet.

Signed-off-by: Sam Day <me@samcday.com>
Link: https://patch.msgid.link/20260531-qcom-phoneconfig-fix-v1-1-110a1c542dc3@samcday.com
Signed-off-by: Casey Connolly <casey.connolly@linaro.org>