asoc: msm: assign mic gnd swap function

Assign mic gnd swap function if usbc analog is
enabled. This is irrespective of whether us_euro
gpio is defined.

Change-Id: I6cf5beadca18682a7488db2286986883dbbcdf3d
Signed-off-by: Karthikeyan Mani <kmani@codeaurora.org>