powerpc/shared/console: "termios" first open sets console baud to 9600

When the PowerPC shared console baud rate starts at anything other than
9600 the termios code will set it to 9600 at the first open.

bsps/powerpc/shared/console/uart.c

@@ -536,6 +536,10 @@ BSP_uart_termios_set(int uart, void *p)
 
   uart_data[uart].ioMode           = ttyp->device.outputUsesInterrupts;
 
+  /* Convert from the baud number to the "speed_t" termios setting. */
+  ttyp->termios.c_ispeed = ttyp->termios.c_ospeed =
+    rtems_termios_number_to_baud(uart_data[uart].baud);
+
   return;
 }