Add odm_dlkm partition.

Test: define odm_dlkm in CF.
Bug: 156020364
Change-Id: I5593d09a1cdf13e651a13e951336555a7475865e
diff --git a/help.sh b/help.sh
index 37018f7..4af5154 100755
--- a/help.sh
+++ b/help.sh
@@ -46,6 +46,8 @@
                             Stands for "Odm, NO Dependencies"
     vdnod                   Quickly rebuild the vendor_dlkm image from built packages
                             Stands for "VendorDlkm, NO Dependencies"
+    odnod                   Quickly rebuild the odm_dlkm image from built packages
+                            Stands for "OdmDlkm, NO Dependencies"
 
 
 So, for example, you could run: