test/py: typo occured

%s/occured/occurred/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/test/py/tests/test_efi_selftest.py b/test/py/tests/test_efi_selftest.py
index 9d3a115..994d2e2 100644
--- a/test/py/tests/test_efi_selftest.py
+++ b/test/py/tests/test_efi_selftest.py
@@ -16,7 +16,7 @@
 	u_boot_console.run_command(cmd='bootefi selftest', wait_for_prompt=False)
 	m = u_boot_console.p.expect(['Summary: 0 failures', 'Press any key'])
 	if m != 0:
-		raise Exception('Failures occured during the EFI selftest')
+		raise Exception('Failures occurred during the EFI selftest')
 	u_boot_console.run_command(cmd='', wait_for_echo=False, wait_for_prompt=False);
 	m = u_boot_console.p.expect(['resetting', 'U-Boot'])
 	if m != 0: