ostro-os: manual combo-layer update

Pulls in a document improvement.

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>

Author: pohly

conf/combo-layer.conf

@@ -29,7 +29,7 @@ src_uri = git@github.com:ostroproject/meta-ostro.git
 dest_dir = .
 hook = conf/combo-layerhook-generic.sh
 branch = master
-last_revision = 3c2b33199550139622e5aee5719b847f1320591f
+last_revision = f8b6a7ef574c3c280b1d324160ad9bfb7ae12bb6
 
 [meta-ostro-fixes]
 src_uri = git@github.com:ostroproject/meta-ostro-fixes.git