Fix typo

Change-Id: If65513b111b769b8ad4af1d1376fdb0ea3e832bd
diff --git a/build/core/setup-toolchain.mk b/build/core/setup-toolchain.mk
index d05341a..978c4c8 100644
--- a/build/core/setup-toolchain.mk
+++ b/build/core/setup-toolchain.mk
@@ -53,7 +53,7 @@
         # Replace "clang" with the most recent verion
         ifeq ($(NDK_TOOLCHAIN_VERSION),clang)
             NDK_TOOLCHAIN_VERSION=clang$(lastword $(LLVM_VERSION_LIST))
-        fi
+        endif
         # We assume the toolchain name uses dashes (-) as separators and doesn't
         # contain any space. The following is a bit subtle, but essentially
         # does the following: