Fix typo.

Change-Id: I738ad878a2961d118b5a89bf7d434606df2fad92
diff --git a/core/dex_preopt_libart.mk b/core/dex_preopt_libart.mk
index 0e17240..6bf6b73 100644
--- a/core/dex_preopt_libart.mk
+++ b/core/dex_preopt_libart.mk
@@ -22,7 +22,7 @@
 # Set USE_DEX2OAT_DEBUG to false for only building non-debug versions.
 ifneq ($(USE_DEX2OAT_DEBUG), false)
 DEX2OAT = $(DEX2OATD)
-DEX2OAT_DEPENDECY = $(DEX2OATD_DEPENDENCY)
+DEX2OAT_DEPENDENCY = $(DEX2OATD_DEPENDENCY)
 endif
 
 # start of image reserved address space