v2: not only raise the clocks on VCPU boot, but also on IB test.
v3: agd5f: fix r600_uvd_init return value.

fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=63730Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>