selftest/eSDK.py: Cleanup when there is an error in setUpClass
Lately autobuilders are experiencing hangs with selftest,
it seems it is cause if an error happens in setUpClass
method of oeSDKExtSelfTest class because HTTP server
keeps running in background.
This patch will ensure tearDownClass will be run if there
is an error in setUpClass.
Signed-off-by: Mariano Lopez <mariano.lopez@linux.intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
