jbig2dec seems no longer optional; the source for it
is bundle with ghostscript.
License-Update: removed patent references
(From OE-Core rev: 44a3bea7e8fedbc76b6e8f97e1f669def81e158a)
Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
