configs/raspberrypi: change deprecated pi3-miniuart-bt option to miniuart-bt

The pi3-minuart-bt Device Tree overlay has been renamed to
miniuart-bt, as it is useful/usable for other platforms than the
RPi3. So we use this DT overlay and rename the
--add-pi3-miniuart-bt-overlay option to --add-miniuart-bt-overlay
accordingly.

Signed-off-by: Arthur Courtel <arthur.courtel@smile.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
6 files changed