set communication speeds

git-svn-id: svn://svn.berlios.de/openocd/trunk@621 b42882b7-edfa-0310-969c-e2dbd0fdcd60

src/target/target/str912.cfg

 jtag_nsrst_delay 100
 jtag_ntrst_delay 100
 
+jtag_khz 16 2000
+
 #use combined on interfaces or targets that can't set TRST/SRST separately
 reset_config trst_and_srst