msm: adsprpc: Fix compat ioctl invoke failure

Passing garbage address to get_user resulting badparam
error for 32 bit application use cases. Resolve address
inv32 struct pointer to fix.

Change-Id: I7b435a1071da84fac6ab91d628066efc68e22a96
Signed-off-by: Vamsi Krishna Gattupalli <quic_vgattupa@quicinc.com>