binder: Set/Get debug params

Implement the |wpa_supplicant| debug params setter/getter methods.

BUG: 30065582
TEST: Ran the integration tests under |wificond|.

Change-Id: I632541da8c86bcd352d17ae8a71bcadbe3a68034
Signed-off-by: Roshan Pius <rpius@google.com>
3 files changed