[SO] Use truststore all keystore

[SO] Use truststore all keystore

Truststore given by AAF is only giving ONAP root_ca.
In order to have access to other platforms, we must also have all the
other ones.
As ONAP root ÇA and all known CAs are present in truststore All, let's
use it.

Issue-ID: OOM-2688
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
Change-Id: I551b8e4a316dcf4f2dee1bf6c45327496a488cdd