asoc: wsa881x: Fix crash while capturing swr_slv codec dump

Swr-slv address is overwritten during wsa881x_swr_probe,
hence soundwire getting incorrect slave address. While
accessing swr master from swr slave due to incorrect
address device crashed
To avoid the issue align the debugfs similar to wsa883x codec.

Change-Id: Ic8aaa0728a43936cd4c6e1ed590e01ba8f0fbf5b
Signed-off-by: Shashi Kant Maurya <smaury@codeaurora.org>