docbook-sgml-dtd-3.1-native: fix recipe name

Package recipe should contain version token in its name.

(From OE-Core rev: c3c424b447ed4ad46263ef379b7e8892f3974821)

Signed-off-by: Emilia Ciobanu <emilia.maria.silvia.ciobanu@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/recipes-devtools/docbook-sgml-dtd/docbook-sgml-dtd-3.1-native.bb b/meta/recipes-devtools/docbook-sgml-dtd/docbook-sgml-dtd-3.1-native_3.1.bb
similarity index 100%
rename from meta/recipes-devtools/docbook-sgml-dtd/docbook-sgml-dtd-3.1-native.bb
rename to meta/recipes-devtools/docbook-sgml-dtd/docbook-sgml-dtd-3.1-native_3.1.bb