Add a page explaining IOMMU to Conceptual section (#3851)

* Add a page explaining IOMMU to Conceptual section

* fix typo, expand wordlist

* fix typo

* streamlined the iommu section (#3947)

* streamlined the iommu section

* made changes based on feedback

* tweaked some language around xgmi etc

* removed the reference to the MI300 to ensure a long shelf-life for this content

* changed onwards bc the spellcheck didn't like it

* Update docs/conceptual/iommu.rst

Co-authored-by: Leo Paoletti <164940351+lpaoletti@users.noreply.github.com>

* Update docs/conceptual/iommu.rst

Co-authored-by: Leo Paoletti <164940351+lpaoletti@users.noreply.github.com>

* Update docs/conceptual/iommu.rst

Co-authored-by: Leo Paoletti <164940351+lpaoletti@users.noreply.github.com>

* Update docs/conceptual/iommu.rst

Co-authored-by: Leo Paoletti <164940351+lpaoletti@users.noreply.github.com>

* Update docs/conceptual/iommu.rst

Co-authored-by: Leo Paoletti <164940351+lpaoletti@users.noreply.github.com>

* Updated based

---------

Co-authored-by: spolifroni-amd <Sandra.Polifroni@amd.com>
Co-authored-by: Leo Paoletti <164940351+lpaoletti@users.noreply.github.com>

.wordlist.txt

@@ -213,6 +213,7 @@ MLM
 MMA
 MMIO
 MMIOH
+MMU
 MNIST
 MPI
 MSVC
@@ -506,6 +507,7 @@ datatypes
 dbgapi
 de
 deallocation
+debuggability
 denoise
 denoised
 denoises
@@ -520,6 +522,7 @@ devsel
 dimensionality
 disambiguates
 distro
+distros
 el
 embeddings
 enablement
@@ -758,6 +761,7 @@ uncached
 uncorrectable
 unhandled
 uninstallation
+unmapped
 unsqueeze
 unstacking
 unswitching
@@ -777,6 +781,8 @@ vectorize
 vectorized
 vectorizer
 vectorizes
+virtualize
+virtualized
 vjxb
 voxel
 walkthrough