Port meta-forgefirm to Scarthgap

- LAYERSERIES_COMPAT -> scarthgap
- Yocto 3.4+ override syntax (:remove/:append/:${PN})
- ulfius: explicit protocol=https;branch=master on the git SRC_URI

meta-forgefirm/recipes-extended/uflius/ulfius_git.bb

@@ -4,7 +4,7 @@ HOMEPAGE = "https://github.com/babelouest/ulfius"
 LICENSE = "LGPL-2.1"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=40d2542b8c43a3ec2b7f5da31a697b88"
 
-SRC_URI = "git://github.com/babelouest/ulfius"
+SRC_URI = "git://github.com/babelouest/ulfius;protocol=https;branch=master"
 SRCREV = "${AUTOREV}"
 
 S = "${WORKDIR}/git"
@@ -12,7 +12,7 @@ S = "${WORKDIR}/git"
 inherit cmake pkgconfig
 
 # For some reason, this package wants to install headers from other packages
-# do_install_append() {
+# do_install:append() {
 #   rm -f ${D}${includedir}/orcania.h
 #   rm -f ${D}${includedir}/orcania-cfg.h
 #   rm -f ${D}${includedir}/yder.h
@@ -20,6 +20,6 @@ inherit cmake pkgconfig
 # }
 
 DEPENDS = "gnutls jansson libmicrohttpd"
-RDEPENDS_${PN} = "gnutls jansson libmicrohttpd"
+RDEPENDS:${PN} = "gnutls jansson libmicrohttpd"
 
 EXTRA_OECMAKE += "-DWITH_JOURNALD=off"