flit_core: export do_configure and do_compile

The class should export the tasks so they can be extended or overriden
elsewhere (like what setuptools3.bbclass has).

(From OE-Core rev: 14c2dcbebccf072225a089518ffeb010401f479c)

Signed-off-by: Tim Orling <tim.orling@konsulko.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/flit_core.bbclass

@@ -2,7 +2,7 @@ inherit pip_install_wheel python3native python3-dir setuptools3-base
 
 DEPENDS += "python3 python3-flit-core-native python3-pip-native"
 
-do_configure () {
+flit_core_do_configure () {
     mkdir -p ${S}/dist
     cat > ${S}/build-it.py << EOF
 from flit_core import buildapi
@@ -10,7 +10,8 @@ buildapi.build_wheel('./dist')
 EOF
 }
 
-do_compile () {
+flit_core_do_compile () {
     ${STAGING_BINDIR_NATIVE}/${PYTHON_PN}-native/${PYTHON_PN} ${S}/build-it.py
 }
 
+EXPORT_FUNCTIONS do_configure do_compile