zero: Add templates for local.conf and bblayers.conf

Add template files for local.conf and bblayers.conf.  With these
files, we can now do:

    $ git clone https://github.com/spacecubics/scsat1-rpi
    $ cd scsat1-rpi/zero
    $ git clone -b kirkstone git://git.yoctoproject.org/meta-raspberrypi
    $ git clone -b kirkstone git://git.yoctoproject.org/poky
    $ TEMPLATECONF=$(readlink -f ./meta-scsat-rpi/conf) source ./poky/oe-init-build-env
    $ bitbake core-image-minimal

    Loading cache: 100% |                                                 | ETA:  --:--:--
    Loaded 0 entries from dependency cache.
    Parsing recipes: 100% |###############################################| Time: 0:00:04
    Parsing of 913 .bb files complete (0 cached, 913 parsed). 1675 targets, 96 skipped, 0 masked, 0 errors.
    NOTE: Resolving any missing task queue dependencies

    Build Configuration:
    BB_VERSION           = "2.0.0"
    BUILD_SYS            = "x86_64-linux"
    NATIVELSBSTRING      = "debian"
    TARGET_SYS           = "arm-oe-linux-gnueabi"
    MACHINE              = "raspberrypi0-wifi"
    DISTRO               = "nodistro"
    DISTRO_VERSION       = "nodistro.0"
    TUNE_FEATURES        = "arm thumb vfp arm1176jzfs callconvention-hard"
    TARGET_FPU           = "hard"
    meta                 = "kirkstone:471318ae2f6b3c142822001f4a18e2fed8c78f1a"
    meta-raspberrypi     = "kirkstone:43683cb14b6afc144619335b3a2353b70762ff3e"

    Initialising tasks: 100% |############################################| Time: 0:00:00
    Sstate summary: Wanted 721 Local 0 Mirrors 0 Missed 721 Current 0 (0% match, 0% complete)
    NOTE: Executing Tasks
    NOTE: Tasks Summary: Attempted 2005 tasks of which 0 didn't need to be rerun and all succeeded.

Note that currently this only works with G++ 12.  Debian Sid already
have G++ 13 and libdns FTBFS.

rpm-software-management/libdnf#1558

Signed-off-by: Yasushi SHOJI <yashi@spacecubics.com>

zero/meta-scsat-rpi/conf/bblayers.conf.sample

@@ -0,0 +1,11 @@
+# POKY_BBLAYERS_CONF_VERSION is increased each time build/conf/bblayers.conf
+# changes incompatibly
+POKY_BBLAYERS_CONF_VERSION = "2"
+
+BBPATH = "${TOPDIR}"
+BBFILES ?= ""
+
+BBLAYERS ?= " \
+  ##OEROOT##/meta \
+  ##OEROOT##/../meta-raspberrypi \
+  "

zero/meta-scsat-rpi/conf/local.conf.sample

@@ -0,0 +1,16 @@
+MACHINE = "raspberrypi0-wifi"
+#DISTRO = "scsat1-rpi"
+PACKAGE_CLASSES = "package_rpm"
+USER_CLASSES = "buildstats"
+PATCHRESOLVE = "noop"
+BB_DISKMON_DIRS ??= "\
+    STOPTASKS,${TMPDIR},1G,100K \
+    STOPTASKS,${DL_DIR},1G,100K \
+    STOPTASKS,${SSTATE_DIR},1G,100K \
+    STOPTASKS,/tmp,100M,100K \
+    HALT,${TMPDIR},100M,1K \
+    HALT,${DL_DIR},100M,1K \
+    HALT,${SSTATE_DIR},100M,1K \
+    HALT,/tmp,10M,1K"
+PACKAGECONFIG:append:pn-qemu-system-native = " sdl"
+CONF_VERSION = "2"