Fix 32-bit device tests

32-bit tests are installed to /data/nativetest, not /data/nativetest32.

Test: m -j test-art-target-gtest32
Change-Id: I2736d6783dd34550dbfbbe54ffa724cd2b886d8b
diff --git a/test/Android.bp b/test/Android.bp
index 46d7c94..5803b84 100644
--- a/test/Android.bp
+++ b/test/Android.bp
@@ -127,7 +127,7 @@
     ],
     target: {
         android32: {
-            cflags: ["-DART_TARGET_NATIVETEST_DIR=/data/nativetest32/art"],
+            cflags: ["-DART_TARGET_NATIVETEST_DIR=/data/nativetest/art"],
         },
         android64: {
             cflags: ["-DART_TARGET_NATIVETEST_DIR=/data/nativetest64/art"],