soc: add support to read swr physical addr from dt

Remove static definitions of rx swr slave physical addresses.
Add support to read swr slave physical addresses from device
tree and store it within respective master data structure.
Revert addition of slave device address for wcd937x in soundwire
master.

Change-Id: I0eb2597b8e40a54d476cd2662bbe4f2008af899a
Signed-off-by: Vignesh Kulothungan <vigneshk@codeaurora.org>