Enable BLE where we can. Switch 4MB, non-USB board default partitioning
over to a single 2MB firmware bank. Old boards override this setting to
keep the same behavior.
This also adds alpha support for the ESP32-C2 (aka ESP8684).
Fixes#5926 and fixes#7170
Due to inline assembly, wrong instructions were generated. Use
corresponding 32 bit instructions and fix the offsets used.
Signed-off-by: Efi Weiss <efiwiss@gmail.com>
