Support for two-wire cJTAG OSCAN1 signaling thru FTDI devices with appropriate pinout (#320)

Added support for cJTAG OSCAN1 over FTDI MPSSE.

Author: GregSavin

configure.ac

@@ -110,6 +110,7 @@ m4_define([ADAPTER_OPT], [m4_translit(ADAPTER_ARG($1), [_], [-])])
 
 m4_define([USB1_ADAPTERS],
 	[[[ftdi], [MPSSE mode of FTDI based devices], [FTDI]],
+	[[ftdi_oscan1], [cJTAG OSCAN1 tunneled thru MPSSE], [FTDI_OSCAN1]],
 	[[stlink], [ST-Link JTAG Programmer], [HLADAPTER_STLINK]],
 	[[ti_icdi], [TI ICDI JTAG Programmer], [HLADAPTER_ICDI]],
 	[[ulink], [Keil ULINK JTAG Programmer], [ULINK]],