iommu: arm-smmu: update SID info print

Print SSD info in the context fault handler. This is useful to
differentiate transaction generated within SMMU to those from actual
clients.

While we are at it, also move SID print before we start ATOS operations.
Sometime it's observed that if system triggers panic before fault handler
completes ATOS operations then the SID info is not printed. SID info has
been found to be must in order to identify the master. So print it before
we start ATOS operation.

Change-Id: I1391686510ef8d61bf11b83102c884b5fa433abd
Signed-off-by: Prakash Gupta <guptap@codeaurora.org>