distro/yocto: add meta-salmanoff Yocto layer for QEMU x86 images

Vendor the BitBake layer (recipes, network config, boost pin, kernel
append, runqemu bridge script) alongside SMO for packaging as a Yocto image.

Co-authored-by: Cursor <cursoragent@cursor.com>

distro/yocto/meta-salmanoff/recipes-core/images/salmanoff-image.bb

@@ -0,0 +1,22 @@
+require recipes-core/images/core-image-minimal.bb
+
+SUMMARY = "Salmanoff runtime image"
+
+IMAGE_FEATURES += "ssh-server-openssh"
+
+IMAGE_INSTALL:append = " \
+    rseqsliceprobe \
+    iproute2 \
+    boost-system \
+    boost-log \
+    libcamera \
+    opencl-icd-loader \
+    libopencl-mesa \
+    libgallium \
+    clinfo \
+    v4l-utils \
+    salmanoff-rusticl-env \
+    liburing \
+    salmanoff \
+"
+

distro/yocto/meta-salmanoff/recipes-core/init-ifupdown/init-ifupdown/salmanoff-interfaces

@@ -0,0 +1,12 @@
+# Salmanoff lab LAN — static eth0 for bridged QEMU on 10.42.0.0/24.
+# Used with: runqemu salmanoff-image snapshot bridge=<host-bridge>
+
+auto lo
+iface lo inet loopback
+
+auto eth0
+iface eth0 inet static
+	address 10.42.0.16
+	netmask 255.255.255.0
+	gateway 10.42.0.1
+	dns-nameservers 10.42.0.1

distro/yocto/meta-salmanoff/recipes-core/init-ifupdown/init-ifupdown_1.0.bbappend

@@ -0,0 +1,7 @@
+FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:"
+
+SRC_URI:append = " file://salmanoff-interfaces"
+
+do_install:append() {
+	install -m 0644 ${UNPACKDIR}/salmanoff-interfaces ${D}${sysconfdir}/network/interfaces
+}