message: Updating the cmake hash and location in master.
diff: # ==============================================================================
  include (ExternalProject)
  -set(gemmlowp_URL http://github.com/google/gemmlowp/archive/010bb3e71a26ca1d0884a167081d092b43563996.tar.gz)
  -set(gemmlowp_HASH SHA256=861cc6d9d902861f54fd77e1ab79286477dcc559b2a283e75b9c22d37b61f6ae)
  +set(gemmlowp_URL http://mirror.bazel.build/github.com/google/gemmlowp/archive/a6f29d8ac48d63293f845f2253eccbf86bc28321.tar.gz)
  +set(gemmlowp_HASH SHA256=75d40ea8e68b0d1644f052fffe8f14a410b2a73d40ccb859a95c0578d194ec26)
  set(gemmlowp_BUILD ${CMAKE_CURRENT_BINARY_DIR}/gemmlowp/src/gemmlowp)
  set(gemmlowp_INCLUDE_DIR ${CMAKE_CURRENT_BINARY_DIR}/gemmlowp/src/gemmlowp)
  