Fix runtests.sh.

Make it point to a build target that actually exists.

Test: Run runtests.sh.
Change-Id: I5f025dd639e56376f52a3d337005dd358554d45b
diff --git a/tests/wifi/runtests.sh b/tests/wifi/runtests.sh
index 87055f2..c867901 100755
--- a/tests/wifi/runtests.sh
+++ b/tests/wifi/runtests.sh
@@ -21,7 +21,7 @@
 fi
 
 set -e # fail early
-make -j32 -C $ANDROID_BUILD_TOP -f build/core/main.mk MODULES-IN-device-google-cuttlefish-tests-wifi
+make -j32 -C $ANDROID_BUILD_TOP -f build/core/main.mk CuttlefishWifiTests
 adb wait-for-device
 # Same as 'package' in manifest file
 adb uninstall com.android.cuttlefish.wifi.tests || true