am 20b3097d: am 754c178a: Add qsort_r() implementation to the C library.

Merge commit '20b3097d4cc225d948dac38e778a9d3b3b1549db' into eclair-mr2-plus-aosp

* commit '20b3097d4cc225d948dac38e778a9d3b3b1549db':
  Add qsort_r() implementation to the C library.