Convert to new override syntax

This is the result of automated script (0.9.1) conversion:

oe-core/scripts/contrib/convert-overrides.py .

converting the metadata to use ":" as the override character instead of "_".

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-oe/recipes-devtools/python/python3-distutils-extra.bb

@@ -4,6 +4,6 @@ inherit setuptools3
 
 S = "${WORKDIR}/python-distutils-extra-${PV}"
 
-RDEPENDS_${PN} = "\
+RDEPENDS:${PN} = "\
     python3-setuptools \
 "