Update manifest to use master-ndk for shader tools

To use master-ndk branch for shaderc, glslang, spirv-headers, and

The merges from upstream are now on the master-ndk branch.
The master branch is now used for platform build, which potentially will
have different build rules that work for platform only.

Change-Id: I56d183bb7d22d530e0b9e18aba83bdd202caad62
1 file changed
tree: 5f3d4f36eba1a6f276302ac02a7503556e03445f
  1. default.xml