multimedia/omxplayer: Deprecate and set expiration date to 2023-12-31

Deprecated upstream and efforts are being directed to integrating
functionality in VLC. Also relies on old APIs and interfaces that do
not support 64-bit and have been deprecated for a long time.

Reference:
https://github.com/popcornmix/omxplayer

Reported by:	fuz

multimedia/omxplayer/Makefile

@@ -13,6 +13,9 @@ WWW=		https://github.com/popcornmix/omxplayer
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
+DEPRECATED=     Depends on legacy APIs and interfaces, functionality is being in integrated into VLC
+EXPIRATION_DATE=2023-12-31
+
 LIB_DEPENDS=	libasound.so:audio/alsa-lib \
 		libboost_thread.so:devel/boost-libs \
 		libdbus-1.so:devel/dbus \