meta-evb-nuvoton: add meta-evb-npcm845 layer for Arbel EVB

Create meta-evb-npcm845 layer under meta-evb-nuvoton then make "setup" script
looks for machine config files being present to know that the meta-layer
contains a valid machine for OpenBMC.

Also add symlinks for the machine config files from meta-nuvoton into
meta-evb-nuvoton so that setup recognizes them as valid machines, but
using the phosphor layers.

Tested:
/openbmc$ . setup evb-npcm845
Machine evb-npcm845 found in meta-evb/meta-evb-nuvoton/meta-evb-npcm845
Common targets are:
     obmc-phosphor-image

Signed-off-by: Tim Lee <timlee660101@gmail.com>
Change-Id: I21de23ded94244bed52c571a8e68b38cf498fc54
diff --git a/meta-evb/meta-evb-nuvoton/meta-evb-npcm845/conf/templates/default/local.conf.sample b/meta-evb/meta-evb-nuvoton/meta-evb-npcm845/conf/templates/default/local.conf.sample
new file mode 100644
index 0000000..21aaace
--- /dev/null
+++ b/meta-evb/meta-evb-nuvoton/meta-evb-npcm845/conf/templates/default/local.conf.sample
@@ -0,0 +1,17 @@
+MACHINE ??= "evb-npcm845"
+DISTRO ?= "openbmc-phosphor"
+PACKAGE_CLASSES ?= "package_ipk"
+SANITY_TESTED_DISTROS:append ?= " *"
+EXTRA_IMAGE_FEATURES ?= "debug-tweaks"
+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"
+CONF_VERSION = "2"