libcameraservice: fix 64-bit print format warnings

Use PRId64 from inttypes.h to print nsecs_t (int64_t)
Use %zu to print size_t

Change-Id: I135620e0388db33587a8a7da393b48a45cb7275a
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
index 1cdf8dc..142da9e 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
@@ -284,7 +284,7 @@
         ssize_t index = mStreamMap.indexOfKey(bufferProducer->asBinder());
         if (index != NAME_NOT_FOUND) {
             ALOGW("%s: Camera %d: Buffer producer already has a stream for it "
-                  "(ID %d)",
+                  "(ID %zd)",
                   __FUNCTION__, mCameraId, index);
             return ALREADY_EXISTS;
         }