targets/fcdev3b.h: bring back CONFIG_TARGET_FCDEV3B C preprocessor symbol CONFIG_TARGET_FCMODEM is no longer used anywhere in our code base, thus it is being fully retired. OTOH, CONFIG_TARGET_FCDEV3B is being brought back: with our earlier FC modem family idea now being withdrawn in light of the discovery of Tango modules, FCDEV3B goes back to being its own unique target.

syntax: regexp

^build-

^fcdev3b-hacks/src/romvecs-insert.lst$
^fcdev3b-hacks/src/romvecs-insert.o$

^helpers/build-date$
^helpers/cfg-hdr-gen$
^helpers/makeline$
^helpers/mk-flash-script$
^helpers/mokosrec2bin$
^helpers/srec4ram$
^helpers/str2ind-ver$