Use old override syntax

- can-utils and dstat recipes were using the colon override syntax
  introduced in honister
- revert back to underline override notation

Signed-off-by: Otto Esko <otto.esko@gmail.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

meta-oe/recipes-extended/socketcan/can-utils_git.bb

@@ -48,5 +48,5 @@ ALTERNATIVE_LINK_NAME[cansequence] = "${bindir}/cansequence"
 
 # busybox ip fails to configure can interfaces, so we need iproute2 to do so.
 # See details in http://www.armadeus.com/wiki/index.php?title=CAN_bus_Linux_driver.
-RRECOMMENDS:${PN} += "iproute2"
+RRECOMMENDS_${PN} += "iproute2"
 

meta-oe/recipes-support/dstat/dstat_0.7.4.bb

@@ -21,4 +21,4 @@ do_install() {
     oe_runmake 'DESTDIR=${D}' install
 }
 
-RDEPENDS:${PN} += "python3-core python3-misc python3-resource python3-shell python3-six python3-unixadmin"
+RDEPENDS_${PN} += "python3-core python3-misc python3-resource python3-shell python3-six python3-unixadmin"