lava_rpc_connector: use authenticated REST API to download logs

When downloading logs for restricted devices one needs to use
authenticated GET calls. This is complicated when using web UI so this
implementation uses REST API which only requires passing proper headers.

Reported-by: Karl Zhang <karl.zhang@arm.com>
Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org>
Signed-off-by: Milosz Wasilewski <milosz.wasilewski@linaro.org>
Change-Id: I67e3b5b97fe96de92e38334ef6279984d00914e3
1 file changed