Create a directory for arm nb blobs

This is to prevent them from overriding each other.

BUG:20002780
Change-Id: I5d0488d7b2fc2701c608ae2cb786956ad12acf21
diff --git a/generate-packages.sh b/generate-packages.sh
index f86693b..44c2d3b 100755
--- a/generate-packages.sh
+++ b/generate-packages.sh
@@ -62,6 +62,9 @@
     if [[ $ONE_FILE == */lib64/* ]]
     then
       FILEDIR_NEW=$FILEDIR/lib64
+    elif [[ $ONE_FILE == */arm/nb/* ]]
+    then
+      FILEDIR_NEW=$FILEDIR/armnb
     else
       FILEDIR_NEW=$FILEDIR
     fi