arm: dts: Import device tree for ST-Ericsson Ux500

from https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson.git/
tag "ux500-armsoc-v5.6-2"
commit 224bf0fe7292 ("ARM: dts: ux500: samsung-golden: Add Bluetooth")

(queued for merge in Linux 5.6)

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>