Fix roam OTA test issues with iwinfo output & Add Pass/Fail (#947)

* improve re pattern to fetch ap data from iwconfig

Signed-off-by: anil-tegala <anil.tegala@candelatech.com>

* fix config issue in wpa2 tests

Signed-off-by: anil-tegala <anil.tegala@candelatech.com>

* fix key,value issues in config creation

Signed-off-by: anil-tegala <anil.tegala@candelatech.com>

* fix empty radio & wifi-bands config issue

Signed-off-by: anil-tegala <anil.tegala@candelatech.com>

* replace global config_data with local config in test

Signed-off-by: anil-tegala <anil.tegala@candelatech.com>

* add ap logs per testcase to allure

Signed-off-by: anil-tegala <anil.tegala@candelatech.com>

* fix missing underscore to get dut logs function

Signed-off-by: anil-tegala <anil.tegala@candelatech.com>

* refine selected testbed logic as per testbed names in lab-info

Signed-off-by: anil-tegala <anil.tegala@candelatech.com>

* marker and pass/fail addtions to roam ota tests

Signed-off-by: anil-tegala <anil.tegala@candelatech.com>

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Signed-off-by: anil-tegala <anil.tegala@candelatech.com>