[Shave]: Rename test file from 'shave-' to 'myriad-'

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@247926 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Driver/shave-toolchain.c b/test/Driver/myriad-toolchain.c
similarity index 100%
rename from test/Driver/shave-toolchain.c
rename to test/Driver/myriad-toolchain.c