Logs use either %#x or 0x%x for flags, channel mask, format, device

Preferred is %#x but 0x%x is also permitted because it is widely used.

The benefit is that it reduces ambiguity and possible confusion,
without needing to read the source code for each log.

Test: builds OK and logs are less ambiguous
Change-Id: Ie2404e071d22278b8bba1e094ad336887844212c
diff --git a/media/libaudioclient/AudioSystem.cpp b/media/libaudioclient/AudioSystem.cpp
index c284f73..50fe385 100644
--- a/media/libaudioclient/AudioSystem.cpp
+++ b/media/libaudioclient/AudioSystem.cpp
@@ -631,7 +631,7 @@
         || (channelMask != mInChannelMask)) {
         size_t inBuffSize = af->getInputBufferSize(sampleRate, format, channelMask);
         if (inBuffSize == 0) {
-            ALOGE("AudioSystem::getInputBufferSize failed sampleRate %d format %#x channelMask %x",
+            ALOGE("AudioSystem::getInputBufferSize failed sampleRate %d format %#x channelMask %#x",
                     sampleRate, format, channelMask);
             return BAD_VALUE;
         }