drm/amdgpu: Rearm IRQ in Navi10 SR-IOV if IRQ lost

Ported from Vega10. SDMA stress tests sometimes see IRQ lost.

Signed-off-by: Samir Dhume <samir.dhume@amd.com>
Reviewed-by: Monk Liu <monk.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>