[RFC media]: refactoring several functions to C++ style

* goto operator is removed. In C++ there is no need
for goto usage, RAII idiom is the replacement for goto.

* C++ has smart pointers for automatic memory management.
There is no need for using calloc().

* The remaining code in this file can also be rewritten in C++.

Test: API AudioManager.getReportedSurroundFormats()
and AudioManager.getSurroundFormats() were called
and results were checked

Change-Id: Ia075a429f3ba9e45cdc865ecaee443726ae9ea43
Signed-off-by: Anton Utkin <avutkin@sberdevices.ru>