BLE: enable advertising on firmware boot

[mmilata]

Several small BLE-related changes:

• 0d55e1a: enable directed advertising on firmware startup if there are > 0 bonded devices, i.e. bonded devices can connect but device does not show up in scans
• 62ea246: stub implementation of ble IO for emulator - just enough to build: the actual implementation is in BLE support in emulator #4838 and needs a bunch of work, however I'd like to start building emulator with the ble SCons features so that we can refer to it from rust code
• c053ef3: enables button support in T3W1 emulator which should be now possible thanks to Event polling #4829, did not test anything if it works just that it doesn't break touch
• ada8814: typo in generated type signatures, remove obsolete nrf upgrade functions
• 7ac07be: expose ble_get_state() to micropython as flags

[github-actions]

core UI changes	device test	click test	persistence test
T2T1 Model T	test(screens) main(screens)	test(screens) main(screens)	test(screens) main(screens)
T3B1 Safe 3	test(screens) main(screens)	test(screens) main(screens)	test(screens) main(screens)
T3T1 Safe 5	test(screens) main(screens)	test(screens) main(screens)	test(screens) main(screens)
All	main(screens)

[obrusvit]

utACK