drm/amdgpu: Fix vcn v5.0.1 poison irq call trace

Why:
    [13014.890792] Call Trace:
    [13014.890793]  <TASK>
    [13014.890795]  ? show_trace_log_lvl+0x1d6/0x2ea
    [13014.890799]  ? show_trace_log_lvl+0x1d6/0x2ea
    [13014.890800]  ? vcn_v5_0_1_hw_fini+0xe9/0x110 [amdgpu]
    [13014.890872]  ? show_regs.part.0+0x23/0x29
    [13014.890873]  ? show_regs.cold+0x8/0xd
    [13014.890874]  ? amdgpu_irq_put+0xc6/0xe0 [amdgpu]
    [13014.890934]  ? __warn+0x8c/0x100
    [13014.890936]  ? amdgpu_irq_put+0xc6/0xe0 [amdgpu]
    [13014.890995]  ? report_bug+0xa4/0xd0
    [13014.890999]  ? handle_bug+0x39/0x90
    [13014.891001]  ? exc_invalid_op+0x19/0x70
    [13014.891003]  ? asm_exc_invalid_op+0x1b/0x20
    [13014.891005]  ? amdgpu_irq_put+0xc6/0xe0 [amdgpu]
    [13014.891065]  ? amdgpu_irq_put+0x63/0xe0 [amdgpu]
    [13014.891124]  vcn_v5_0_1_hw_fini+0xe9/0x110 [amdgpu]
    [13014.891189]  amdgpu_ip_block_hw_fini+0x3b/0x78 [amdgpu]
    [13014.891309]  amdgpu_device_fini_hw+0x3c1/0x479 [amdgpu]
How:
    Add omitted vcn poison irq get call.

Signed-off-by: Stanley.Yang <Stanley.Yang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>