drm/amdgpu/gfx: disable gfx9 cp_ecc_error_irq only when enabling legacy gfx ras

In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu/gfx: disable gfx9 cp_ecc_error_irq only when enabling legacy gfx ras

gfx9 cp_ecc_error_irq is only enabled when legacy gfx ras is assert.

So in gfx_v9_0_hw_fini, interrupt disablement for cp_ecc_error_irq

should be executed under such condition, otherwise, an amdgpu_irq_put

calltrace will occur.

[ 7283.170322] RIP: 0010:amdgpu_irq_put+0x45/0x70 [amdgpu]

[ 7283.170964] RSP: 0018:ffff9a5fc3967d00 EFLAGS: 00010246

[ 7283.170967] RAX: ffff98d88afd3040 RBX: ffff98d89da20000 RCX: 0000000000000000

[ 7283.170969] RDX: 0000000000000000 RSI: ffff98d89da2bef8 RDI: ffff98d89da20000

[ 7283.170971] RBP: ffff98d89da20000 R08: ffff98d89da2ca18 R09: 0000000000000006

[ 7283.170973] R10: ffffd5764243c008 R11: 0000000000000000 R12: 0000000000001050

[ 7283.170975] R13: ffff98d89da38978 R14: ffffffff999ae15a R15: ffff98d880130105

[ 7283.170978] FS: 0000000000000000(0000) GS:ffff98d996f00000(0000) knlGS:0000000000000000

[ 7283.170981] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

[ 7283.170983] CR2: 00000000f7a9d178 CR3: 00000001c42ea000 CR4: 00000000003506e0

[ 7283.170986] Call Trace:

[ 7283.170988] <TASK>

[ 7283.170989] gfx_v9_0_hw_fini+0x1c/0x6d0 [amdgpu]

[ 7283.171655] amdgpu_device_ip_suspend_phase2+0x101/0x1a0 [amdgpu]

[ 7283.172245] amdgpu_device_suspend+0x103/0x180 [amdgpu]

[ 7283.172823] amdgpu_pmops_freeze+0x21/0x60 [amdgpu]

[ 7283.173412] pci_pm_freeze+0x54/0xc0

[ 7283.173419] ? __pfx_pci_pm_freeze+0x10/0x10

[ 7283.173425] dpm_run_callback+0x98/0x200

[ 7283.173430] __device_suspend+0x164/0x5f0

v2: drop gfx11 as it's fixed in a different solution by retiring cp_ecc_irq funcs(Hawking)