qtaguid replace asprintf with libbase StringPrintf

use libbase function android::base::StringPrintf for string
manipulation. Avoid free the char array at the end. Changed the program
logic of building the match template to make it more concise.

Test: manually tested on angler device. build and sync this module into
device and run adb shell ./data/nativetest64/socketTag/socketTag

Change-Id: Ic93ac4e91e87337acb2e12efadeb57833c36c95e
2 files changed