iommu: arm-smmu: use bitwise operator instead of logical

A logical and ('&&') has been used instead of a bitwise and ('&')
in (smmu->options && ARM_SMMU_OPT_SKIP_INIT), so replace it with
bitwise and.

Change-Id: I52eab6674403c3f59aacbf4e07832b8b2354b71d
Signed-off-by: Vijayanand Jitta <vjitta@codeaurora.org>