helpers: Add script to perform generic tests

Some tests does not depend on a board. We can consider these tests
as generic and bootrr-generic-tests is added to contain them.
This scripts is started at the begining of bootrr-auto before boards
specific tests.

Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.com>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>

helpers/bootrr-auto

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+$(pwd)/helpers/bootrr-generic-tests
+
 for TEST in $(tr "\0" "\n" < /proc/device-tree/compatible); do
 	if [ -x "/usr/bin/${TEST}" ]; then
 		/usr/bin/${TEST}

helpers/bootrr-generic-tests

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+assert_file_is_empty deferred-probe-empty /sys/kernel/debug/devices_deferred
+