system/media build with BOARD_VNDK_VERSION

Bug: 37342627
Test: cd system/media && mma -j64 -k BOARD_VNDK_VERSION=current
Merged-In: I7f99fbe685a960f0506398cdb21a7d86d1d8d4a1
Change-Id: I7f99fbe685a960f0506398cdb21a7d86d1d8d4a1
(cherry picked from commit a6bddef1a2549c0b05b1fdb4a3bee4b06224f70b)
2 files changed