Fix typo.

Change-Id: Id4b619e3fff8d801c4662d9cb2719576c370a503
diff --git a/core/Makefile b/core/Makefile
index bff5e80..72a43cc 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -843,7 +843,7 @@
 
 # Dist the platform.zip
 ifneq (,$(filter platform, $(MAKECMDGOALS)))
-$(call dist-for-goals, platform, $(INSTALLED_PLATFROM_ZIP))
+$(call dist-for-goals, platform, $(INSTALLED_PLATFORM_ZIP))
 endif
 
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