drm/amdgpu/vcn: reset fw_shared under SRIOV

- The previous patch only considered the case for baremetal
and is not applicable for SRIOV code path. We also need to
init fw_share for SRIOV VF

Fixes: 928cd772e18f ("drm/amdgpu/vcn: reset fw_shared when VCPU buffers corrupted on vcn v4.0.3")
Acked-by: Alex Deucher <[e-mail]>
Signed-off-by: Bokun Zhang <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c

···
 	for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
 		vcn_inst = GET_INST(VCN, i);
 
+		vcn_v4_0_3_fw_shared_init(adev, vcn_inst);
+
 		memset(&header, 0, sizeof(struct mmsch_v4_0_3_init_header));
 		header.version = MMSCH_VERSION;
 		header.total_size = sizeof(struct mmsch_v4_0_3_init_header) >> 2;