[test] Add test for disabled pan in IT

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Set disabled IT pan

Disabled IT pan is set as -1.

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Update changelog

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>