lib: Move libopencsd to /usr/lib and make private

libopencsd is used to decode Arm CoreSight traces. It isn't needed
during the boot so can be moved to /usr/lib, and may change it's API
so can be marked as private as onlt the future hwt tool will use it.

Sponsored by:	Arm Ltd
Differential Revision:	https://reviews.freebsd.org/D51380

ObsoleteFiles.inc

@@ -51,6 +51,11 @@
 #   xargs -n1 | sort | uniq -d;
 # done
 
+# 20250801: libopencsd libraries moved to /usr/lib and made private
+OLD_FILES+=lib/libopencsd.so.0
+OLD_FILES+=usr/lib/libopencsd.a
+OLD_FILES+=usr/lib/libopencsd.so
+
 # 20250728: zfsboot (MBR) removed
 OLD_FILES+=boot/zfsboot
 OLD_FILES+=usr/share/man/man8/zfsboot.8.gz

lib/libopencsd/Makefile

@@ -1,8 +1,3 @@
-PACKAGE=lib${LIB}
-SHLIBDIR?=	/lib
-
-.include <src.opts.mk>
-
 OPENCSDSRC=	${SRCTOP}/contrib/opencsd
 
 .PATH:	${OPENCSDSRC}/decoder/source/ete/		\
@@ -182,6 +177,7 @@ INCSGROUPS=INCS APIINCS ETEINCS ETMV3INCS ETMV4INCS PTMINCS STMINCS
 LIBADD= cxxrt
 
 WARNS?= 1
+PRIVATELIB=	true
 
 HAS_TESTS=
 

release/packages/ucl/libopencsd-all.ucl

@@ -1,5 +0,0 @@
-comment = "ARM CoreSight Trace Decode Library"
-desc = <<EOD
-This library provides an API suitable for the decode of ARM CoreSight
-trace streams.
-EOD