libbladeRF: Added status check missed in 26639556
bladeRF-cli: Print serial number in 'flash_image' output
bladeRF-cli: Bumped patch version (v0.10.7)

Changes include:
    - Serial # printed in `flash_image` output
    - Help text fixes and improvements
    - Additional parameter range checks
    - Minor source tree reorganization
    - Windows: Fixed reading binary files in for transmission
    - Added libc version check to determine if -lrt is required
bladeRF-cli: Added file expansion to `flash_init_cal` and `flash_image`
libbladeRF: test_sync - bladerf_enable_module() thread safety fix

As stated in the API documentation, control calls must only be executed
in one context at a time. A lock has been added to ensure this in the
test_sync program