cmake: Rename .bbappend to match new version from oe-core

(From meta-qt5 rev: 662ff3043a4a308e09e7628bf11260aa60341937)

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

diff --git a/meta-qt5/recipes-devtools/cmake/cmake_2.8.12.bbappend b/meta-qt5/recipes-devtools/cmake/cmake_2.8.12.1.bbappend
similarity index 100%
rename from meta-qt5/recipes-devtools/cmake/cmake_2.8.12.bbappend
rename to meta-qt5/recipes-devtools/cmake/cmake_2.8.12.1.bbappend