msm: board-8930: Add platform device for multi channel session.

This was missed in earlier patch
(e2601aeae313ed7c34026bfaf3eb2b5ec7822d5d) hence breaking
audio features.

Change-Id: I05ed948fdcfbe7ca511915b2674b1ab69e488c4d
Signed-off-by: Asish Bhattacharya <asishb@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-8930.c b/arch/arm/mach-msm/board-8930.c
index 2dce666..d5014bd 100644
--- a/arch/arm/mach-msm/board-8930.c
+++ b/arch/arm/mach-msm/board-8930.c
@@ -2297,6 +2297,7 @@
 	&msm_cpudai_incall_record_rx,
 	&msm_cpudai_incall_record_tx,
 	&msm_pcm_hostless,
+	&msm_multi_ch_pcm,
 };
 
 static void __init msm8930_i2c_init(void)