Add support for PowerPC jobs

In order to run on Power KVM we need to change QEMUVGA option to std.

Signed-off-by: Dinar Valeev <dvaleev@suse.com>
Set serial dev to hvc0 on Power

Signed-off-by: Dinar Valeev <dvaleev@suse.com>
Merge pull request #116 from k0da/master

Add support for PowerPC jobs