config: set CONFIG_SERIAL_BAUD min to 1200

options.cmake

@@ -20,7 +20,7 @@ set(CONFIG_SCHED_FREQ 1000 CACHE STRING "Task switch frequency in Hz")
 
 set(CONFIG_SERIAL_BAUD 115200 CACHE STRING "Default serial baud rate")
 set_property(CACHE CONFIG_SERIAL_BAUD PROPERTY STRINGS
-	200 2400 4800 9600 19200 38400 57600 115200
+	1200 2400 4800 9600 19200 38400 57600 115200
 )
 
 set(CONFIG_SERIAL_BUFSZ 256 CACHE STRING "Default serial buffer size in bytes")