Revert "Move driver/linux into the main repository rather than a..."

Revert "Move driver/linux to main repository."

Revert submission 8180-submodules

Reason for revert: Arm prefer to keep driver separate due to different license.
Reverted Changes:
I7b7ad6fc4:Move driver/linux to main repository.
I3e49fbd0b:Move driver/linux into the main repository rather ...

Change-Id: Ib2ce37bf32b95e0aad4a2d2f14655ea380816e70
8 files changed