nemora-postd: import from gBMC

This is the POST code portion of nemorad.

Signed-off-by: Nan Zhou <nanzhoumails@gmail.com>
Google-Bug-Id: 179618653
Change-Id: Icf68fe8adf62c646238cf8235918a13effa857f8
diff --git a/.gitignore b/.gitignore
index 4849188..8be3ff7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,4 +4,5 @@
 !/**/subprojects/kcsbridge/
 !/**/subprojects/metrics-ipmi-blobs/
 !/**/subprojects/ncsid/
+!/**/subprojects/nemora-postd/
 /**/subprojects/*.wrap