msm: iommu: Reorganize per-target device initialization
msm: iommu: Reorganize per-target device initialization

Organize the code to add IOMMU devices into per-target
blocks to make the code easier to maintain.

Change-Id: I8127b587d087ae2b05d3be5b207cd5e514e7247c
Signed-off-by: Stepan Moskovchenko <4b3f23b045e38e54cffd83d34440316666b35af9@codeaurora.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas