drm/amd/pm: support power source switch on Sienna Cichlid

stable inclusion
from stable-v5.10.156
commit 6958556285ec640e73fea18ed48b2514ebd2359e
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7MCG1

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=6958556285ec640e73fea18ed48b2514ebd2359e



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[ Upstream commit 18a4b3de ]

Enable power source switch on Sienna Cichlid.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Stable-dep-of: 0c85c067 ("drm/amdgpu: disable BACO on special BEIGE_GOBY card")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>