drm/amdgpu: Fix refclk reporting for SMU v13.0.6

[ Upstream commit 6b7d2117

 ]

SMU v13.0.6 SOCs have 100MHz reference clock.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Stable-dep-of: 6fce23a4

 ("drm/amdgpu: Restrict extended wait to PSP v13.0.6")
Signed-off-by: Sasha Levin <sashal@kernel.org>