drm/amd/pm: disable pcie speed switching on Intel platform for smu v14.0.2/3

drm/amd/pm: disable pcie speed switching on Intel platform for smu v14.0.2/3

commit b0df0e777874549c128b43f7bf4989a2ed24b37a upstream.

disable pcie speed switching on Intel platform for smu v14.0.2/3
based on Intel's requirement.
v2: align the setting with smu v13.

Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.11.x
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>