Set the defaults to the v2023.10 release

* Add recipes for the v2023.10 release of libmetal and open-amp and use
  the commit of the v2023.10.0 tag
* Lock the Linux examples and utilities to the v2023.10.0 tag
* Use the real branch name, not main
* fix license md5sum as is done in -dev recipes

Signed-off-by: Bill Mills <bill.mills@linaro.org>

Author: wmamills

recipes-openamp/libmetal/libmetal_v2023.10.bb

@@ -0,0 +1,7 @@
+SRCREV = "0cb7d293a7f25394a06847a28d0f0ace9862936e"
+BRANCH = "v2023.10"
+SRCBRANCH ?= "${BRANCH}"
+PV = "${SRCBRANCH}+git${SRCPV}"
+LIC_FILES_CHKSUM ?= "file://LICENSE.md;md5=f4d5df0f12dcea1b1a0124219c0dbab4"
+
+include libmetal.inc

recipes-openamp/open-amp/open-amp_v2023.10.bb

@@ -0,0 +1,7 @@
+SRCREV = "1904dee18da85400e72b8f55c5c99e872a486573"
+BRANCH = "v2023.10"
+SRCBRANCH ?= "${BRANCH}"
+PV = "${SRCBRANCH}+git${SRCPV}"
+LIC_FILES_CHKSUM ?= "file://LICENSE.md;md5=ab88daf995c0bd0071c2e1e55f3d3505"
+
+include open-amp.inc

recipes-openamp/rpmsg-examples/rpmsg-example.inc

@@ -5,12 +5,19 @@ LICENSE = "BSD-3-Clause"
 LIC_FILES_CHKSUM = "file://${WORKDIR}/git/LICENSE.md;md5=0b96a4c07d631aa5141bd3f058ba43b0"
 
 REPO = "git://github.com/OpenAMP/openamp-system-reference;protocol=https"
-BRANCH = "main"
 
-# this sets the default SRCREV for all rpmsg examples
-# you can set it in local.conf to "${AUTOREV}" to get the tip of main
-# This hash is tip of main as of 2023/2/6
-OPENAMP_SYS_REF_SRCREV ?= "7f1fb3b84edc1b3eab62a7ade7f88e99f7e78b93"
+# this sets the default SRCREV and BRANCH for all rpmsg examples
+# if you wish to use the tip of main set the following in local.conf
+# OPENAMP_SYS_REF_SRCREV="${AUTOREV}"
+# OPENAMP_SYS_REF_BRANCH="main"
+#
+# These values select the commit tagged by v2023.10.0
+OPENAMP_SYS_REF_SRCREV ?= "3716dbba0154259d5efa3fa359313cce69cd163d"
+OPENAMP_SYS_REF_BRANCH ?= "v2023.10"
 
-SRC_URI = "${REPO};branch=${BRANCH};"
+# This include is used by multiple recipes
+# now set the variables for this recipe
+BRANCH  = "${OPENAMP_SYS_REF_BRANCH}"
 SRCREV  = "${OPENAMP_SYS_REF_SRCREV}"
+
+SRC_URI = "${REPO};branch=${BRANCH};"