librem5-devkit.conf: set the operating mode to bluetooth EDR

Firmware vesion 2.0.0024 broke BLE so we need to disable dual bluetooth support

Signed-off-by: Angus Ainslie <angus@akkea.ca>
6 jobs for bt-dual-byz in 5 minutes and 11 seconds (queued for 3 seconds)
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Status Job ID Name Coverage
  Test
passed #356833
librem5
test:download:deb

00:01:44

passed #356834
librem5
test:download:pip

00:01:59

 
  Package
passed #356835
librem5
package-pureos-byzantium

00:00:52

passed #356836
librem5:arm64
package-pureos-byzantium:arm64

00:03:11

 
  Test Package
passed #356837
librem5
autopkgtest-pureos-byzantium-package

00:00:45

passed #356838
librem5
lintian-pureos-byzantium-package

00:00:40