fontconfig: upgrade 2.14.1 -> 2.14.2

License-update: remove fccache.c as all licenses are collected in COPYING.

fcache.c used to contain a public domain notice of md5
implementation in the middle of itself, but that too has moved
to COPYING.

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>