Firebird sql driver

[Vitaly Bodzhgua]

Good day,

Makefile.in for rlm_sql_firebird in freeradius-1.1.5 source code has the 
line:
SRCS            = sql_firebird.c

It should be replaced with
SRCS            = sql_firebird.c sql_fbapi.c

Please, fix it in CVS, if possible