contrib: fix udev rules for tty based adaptors

Most serial adaptors are identified by udev with SUBSYSTEM=tty and
without DEVTYPE. This patch fix udev rules to work with any listed
tty-based adaptor. It has been tested with a FTDI-based Bus Pirate.

Signed-off-by: Luca Bruno <lucab@debian.org>

contrib/openocd.udev

 ACTION!="add|change", GOTO="openocd_rules_end"
-SUBSYSTEM!="usb", GOTO="openocd_rules_end"
-ENV{DEVTYPE}!="usb_device", GOTO="openocd_rules_end"
+SUBSYSTEM!="usb|tty", GOTO="openocd_rules_end"
 
 # Olimex ARM-USB-OCD
 ATTRS{idVendor}=="15ba", ATTRS{idProduct}=="0003", MODE="664", GROUP="plugdev"
@@ -31,6 +30,7 @@ ATTRS{idVendor}=="0fbb", ATTRS{idProduct}=="1000", MODE="664", GROUP="plugdev"
 ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6010", MODE="664", GROUP="plugdev"
 
 # Calao Systems USB-A9260-C02
+# Bus Pirate
 ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6001", MODE="664", GROUP="plugdev"
 
 # IAR J-Link USB