Add od to allowed PATH tools

od is used by ninja's inline.sh tool to encode a python script in a C
header.

Test: forrest run of build-tools branch
Change-Id: I87001a02b168ebe183b8b7dc495c67bb43f1b86d
diff --git a/ui/build/paths/config.go b/ui/build/paths/config.go
index a87cbf2..b7128d7 100644
--- a/ui/build/paths/config.go
+++ b/ui/build/paths/config.go
@@ -100,6 +100,7 @@
 	"mkdir":     Allowed,
 	"mktemp":    Allowed,
 	"mv":        Allowed,
+	"od":        Allowed,
 	"openssl":   Allowed,
 	"paste":     Allowed,
 	"patch":     Allowed,