Change the fd to be blocking for health profile.
Change the fd to be blocking for health profile.

This is sync with the java IO stream APIs for the public APIs.

Change-Id: I5c7958687275d89257ac26f6a5abd08906327d02

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base