Changes from loadtools-r1 to loadtools-r2:

* A flash ID check has been implemented in fc-loadtool, invoked automatically
  before doing any erase or program operations, or explicitly at any time with
  the flash info command.  This check ensures that the type of flash chip in
  the target GSM device is the same as what loadtool thinks it is, based on the
  hardware parameters file.

* fc-xram command line syntax changed slightly in order to support immediate
  passing of the serial line to rvinterf/rvtdump.

* Miscellaneous minor polish.