jenkins_arm.sh: Don't run 'make check' on embedded builds

If we're cross-compiling for arm-none-eabi, we cannot execute test
programs.

Change-Id: I64e88a31091b67c37c308c44013c42d4574d2312
diff --git a/contrib/jenkins_arm.sh b/contrib/jenkins_arm.sh
index 4579596..8229fc8 100755
--- a/contrib/jenkins_arm.sh
+++ b/contrib/jenkins_arm.sh
@@ -16,7 +16,7 @@
 	--disable-shared \
 	CFLAGS="-Os -ffunction-sections -fdata-sections -nostartfiles -nodefaultlibs -Werror"
 
-    run_make
+    $MAKE $PARALLEL_MAKE
 }
 
 # verify build in dir other than source tree