msm: pil-q6v4: Halt and unhalt bus ports

Bus ports need to be idle before the processors behind them are
shutdown to avoid hanging the bus. Add the appropriate calls to
do this.

Change-Id: I5a5c2dbec36eac156fe436c60c6c3dc3e71c6814
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
diff --git a/arch/arm/mach-msm/pil-q6v4.h b/arch/arm/mach-msm/pil-q6v4.h
index b4715f0..54bdf88 100644
--- a/arch/arm/mach-msm/pil-q6v4.h
+++ b/arch/arm/mach-msm/pil-q6v4.h
@@ -22,5 +22,6 @@
 	const char *name;
 	const char *depends;
 	const unsigned pas_id;
+	int bus_port;
 };
 #endif