sysvinit-inittab: Fix getting tty device name from SERIAL_CONSOLES entries
Currently the part after "tty" in the device name go into label along with
everything after that part. For example if SERIAL_CONSOLES="115200;vt100;ttyS0"
than label=S0 but if SERIAL_CONSOLES="115200;ttyS0;vt100" than label=S0;vt100.
If SERIAL_CONSOLES="..;ttyX;..", part after 'X' should also be trimmed.
Signed-off-by: Muhammad Shakeel <muhammad_shakeel@mentor.com> Signed-off-by: Saul Wold <sgw@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
