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-python/recipes-devtools/python/python3-pynacl_1.4.0.bb

@@ -17,16 +17,16 @@ DEPENDS += "\
     libsodium \
 "
 
-RDEPENDS_${PN} = "\
+RDEPENDS:${PN} = "\
     ${PYTHON_PN}-six \
     ${PYTHON_PN}-cffi \
     libsodium \
 "
 
-do_compile_prepend() {
+do_compile:prepend() {
     export SODIUM_INSTALL=system
 }
 
-do_install_prepend() {
+do_install:prepend() {
     export SODIUM_INSTALL=system
 }