Audio V4: Move Utils in a versioned namespace

Bug: 38184704
Test: compile
Change-Id: I2eb3fb23dcbfbde7d2888c07514be2c63af13ce9
Signed-off-by: Kevin Rocard <krocard@google.com>
diff --git a/media/libaudiohal/DeviceHalHidl.cpp b/media/libaudiohal/DeviceHalHidl.cpp
index 49ef991..0d9c6c4 100644
--- a/media/libaudiohal/DeviceHalHidl.cpp
+++ b/media/libaudiohal/DeviceHalHidl.cpp
@@ -37,6 +37,7 @@
 using ::android::hardware::audio::common::V2_0::AudioPortConfig;
 using ::android::hardware::audio::common::V2_0::AudioMode;
 using ::android::hardware::audio::common::V2_0::AudioSource;
+using ::android::hardware::audio::common::V2_0::HidlUtils;
 using ::android::hardware::audio::V2_0::DeviceAddress;
 using ::android::hardware::audio::V2_0::IPrimaryDevice;
 using ::android::hardware::audio::V2_0::ParameterValue;