msm: mdss: Separate AD info from AD hardware base address

Splitting the AD info struct, which is used primarily to store state, from
the hardware blocks. Functionality is preserved by passing the structures
containing hardware information to the functions that execute the register
writes. This change is necessary for dual pipe operation where one AD state
machine controls more than one AD hardware block.

Change-Id: Ia0d8be6b70d121095df2bbaa102b7dedd26f2302
Signed-off-by: Carl Vanderlip <carlv@codeaurora.org>