In preparation for moving these bits to a shared place, rename them
to match one of the testutilsqemu.c function prefixes. Rename
info->flags handling too as it will need to be moved

testInfoSetPaths isn't renamed because it will stay local
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>
Signed-off-by: NCole Robinson <crobinso@redhat.com>