[AMDGPU][MC][GFX9][GFX10] Disable SYSMSG_OP_HOST_TRAP_ACK

[dpreobra]

SYSMSG_OP_HOST_TRAP_ACK is not supported on GFX9 and GFX10. Update sendmsg accordingly.

An example of failed test:
s_sendmsg sendmsg(MSG_SYSMSG, SYSMSG_OP_HOST_TRAP_ACK)
Expected result:
an error message
Actual result:
s_sendmsg sendmsg(MSG_SYSMSG, SYSMSG_OP_HOST_TRAP_ACK) ; encoding: [0x3f,0x00,0x90,0xbf]