uhd: Registered sc12 as type
x300: Added max link rate info
uhd: multi_usrp now understands link rate info and can check for it
b200: Added max link rate info
uhd: Added max link rate info for usrp1, usrp2 and b100
Fix for BUG #403:  Visible frequency drift on Finite Rx with N210 & SBX
- Added initialization of clock and time sources
tvrx2: fix ref_clock logic when using N2x0
uhd: Registered sc12 as type
x300: Added max link rate info
uhd: multi_usrp now understands link rate info and can check for it
b200: Added max link rate info
uhd: Added max link rate info for usrp1, usrp2 and b100
Merge branch 'martin/warn_sampling_rate'

Conflicts:
	host/include/uhd/usrp/multi_usrp.hpp
x3x0 docs: the word 'firmware' is misleading
uhd: Added pp routines for error codes and rx metadata
uhd: Added nicer error reporting to cal tools
uhd: Added nicer error reporting to rx examples
uhd: Added a cast routine from hex string -> anything
b100+b200+usrp1: removed potentially unsafe sscanf call
uhd: Fixed bug in cal tools that would always use A-side settings, also some refactoring