Convert to new override syntax

This is the result of automated script conversion:

scripts/contrib/convert-overrides.py <oe-core directory>

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

(From OE-Core rev: 42344347be29f0997cc2f7636d9603b1fe1875ae)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/python/python3-pip_21.1.3.bb

@@ -12,12 +12,12 @@ SRC_URI += "file://0001-change-shebang-to-python3.patch"
 
 SRC_URI[sha256sum] = "b5b1eb91b36894bd01b8e5a56a422c2f3838573da0b0a1c63a096bb454e3b23f"
 
-do_install_append() {
+do_install:append() {
     # Install as pip3 and leave pip2 as default
     rm ${D}/${bindir}/pip
 }
 
-RDEPENDS_${PN} = "\
+RDEPENDS:${PN} = "\
   python3-compile \
   python3-io \
   python3-html \