update Stella PID

Author: pennam

boards.txt

@@ -899,19 +899,11 @@ stella.compiler.mbed="{build.variant.path}/libs/libmbed.a" "{build.variant.path}
 stella.vid.0=0x2341
 stella.pid.0=0x005a
 stella.vid.1=0x2341
-stella.pid.1=0x805a
-stella.vid.2=0x2341
-stella.pid.2=0x015a
-stella.vid.3=0x2341
-stella.pid.3=0x025a
+stella.pid.1=0x0076
 stella.upload_port.0.vid=0x2341
 stella.upload_port.0.pid=0x005a
 stella.upload_port.1.vid=0x2341
-stella.upload_port.1.pid=0x805a
-stella.upload_port.2.vid=0x2341
-stella.upload_port.2.pid=0x015a
-stella.upload_port.3.vid=0x2341
-stella.upload_port.3.pid=0x025a
+stella.upload_port.1.pid=0x0076
 
 stella.upload.tool=bossac
 stella.upload.tool.default=bossac