Merge changes Ieb74d3fa,I7df3374f,Ia6894b63,I332af0d5

* changes:
  vndk-def: Add libGLES* pattern to SP-HAL.
  vndk-def: Fix sp-hal and vndk-stable computation.
  vndk-def: Reuse cached vndk classification.
  vndk-def: Add NDKLibDict.classify().