flounder: update kernel prebuild (Mar 2017 NYC-MR1 Security) (DO NOT MERGE) (Part Deux)

420e75934c58 gpu: nvgpu: serialize debug session IOCTLs
20d455bebf0d gpu: nvgpu: gk20a: wrap debug session as optional (retry)

last commit before this set is:
c6b8a6328289 UPSTREAM: packet: fix race condition in packet_set_ring

Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 31799885
Bug: 32370135
Change-Id: I3fa5242a0abb53db4b6cf8128a2414800b817cc0
(cherry picked from commit 8af1048bde145dafff6852c64d989b4e86f11117)
1 file changed
tree: b244a20b55937d9190be6c6845eb1effaa346ddd
  1. Image.gz-dtb