iommu: arm-smmu: Fail device attach when SMR write fails

On systems with Hypervisor support, writes to SMR registers
are trapped by Hypervisor where the value is vetted and gets
written to the SMR register only if valid. If such SMR writes
fails, the SID value doesn't get populated to the stream mapping
table, and any device transaction would lead to USF which would
crash the system. Hence, to avoid any USF fault, fail the device
attach sequence.

Change-Id: I1435c7aa8290d7c2916cc86cc30cfa1cefae3910
Signed-off-by: Sudarshan Rajagopalan <sudaraja@codeaurora.org>
Signed-off-by: Prakash Gupta <guptap@codeaurora.org>