libbladeRF: Missing newline in help for restore
libbladeRF: More const'ness for encode_field
libbladeRF: don't forget HOST_TO_LE in encode_field
libbladeRF: metadata entry data array was too small to store device serial
libbladeRF: Add function for initializing the calibration region in flash
bladeRF-cli: Add command for initializing the cal region
libbladeRF: Fix unexpected end of file error on writing flash image

Forgot file_size() doesn't modify the file pointer anymore
bladeRF-cli: Remove some dead code
bladeRF-cli: Check that device has been opened before using it