audio-lnx: Enable apr-dummy compilation for sdm450

apr_dummy module is added to trigger probe of
deferred modules during sound card registration.
Enable the same for CONFIG_MSM_QDSP6_APRV2 config.

CRs-Fixed: 2165343
Change-Id: I3fa10703b7b1150198b4498a82d1bde35cb7ae5b
Signed-off-by: Soumya Managoli <smanag@codeaurora.org>
diff --git a/ipc/Kbuild b/ipc/Kbuild
index 80c3d26..86db0b4 100644
--- a/ipc/Kbuild
+++ b/ipc/Kbuild
@@ -72,6 +72,7 @@
 APRV_GLINK += apr.o
 APRV_GLINK += apr_v2.o
 APRV_GLINK += apr_tal.o
+APRV_GLINK += apr_dummy.o
 endif
 
 ifdef CONFIG_MSM_QDSP6_APRV2_GLINK