meta-ampere: Cleanup for Yocto override syntax change

Run convert-overrides.py meta-ampere and update missing changes as
below:
- Change all _mtjade to :mtjade
- Change all _${PN} to :${PN}

Tested:
1. Check compilation without problem.
2. Check basic functions like switch UART mux, power control.

Signed-off-by: Thang Q. Nguyen <thang@os.amperecomputing.com>
Change-Id: I42038b2a98ed1951d6c770bdf49f5fc440f8163e
diff --git a/meta-ampere/meta-common/recipes-ac01/usbnet/ampere-usbnet.bb b/meta-ampere/meta-common/recipes-ac01/usbnet/ampere-usbnet.bb
index f683f80..3045fa5 100644
--- a/meta-ampere/meta-common/recipes-ac01/usbnet/ampere-usbnet.bb
+++ b/meta-ampere/meta-common/recipes-ac01/usbnet/ampere-usbnet.bb
@@ -11,17 +11,17 @@
 inherit obmc-phosphor-systemd
 
 DEPENDS = "systemd"
-RDEPENDS_${PN} = "bash"
+RDEPENDS:${PN} = "bash"
 
 SYSTEMD_PACKAGES = "${PN}"
-SYSTEMD_SERVICE_${PN} = " \
+SYSTEMD_SERVICE:${PN} = " \
         ampere_add_usbnet_gadget.service \
         "
 
 SRC_URI += "file://00-bmc-usb0.network"
 SRC_URI += "file://ampere_add_usbnet_gadget.sh"
 
-do_install_append() {
+do_install:append() {
         install -d ${D}${sbindir}
         install -d ${D}/etc/systemd/network
         install -m 744 ${WORKDIR}/ampere_add_usbnet_gadget.sh ${D}${sbindir}/