oc:copy JB overlay settings from Nitrogen6x

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
utc: Use local wl1271-fw-2 instead of device/panda

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
oc: include brcm wifi/bt drivers

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
oc: additional JB updates

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
oc: add fstab.boundary

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
mksdcard.sh: Add diagnostic messages, sleep calls

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>