tree a17ad24d5011391af4d812ef09e6b5312f2ed734
parent fbc938ada27adc917d139ea4475335f85c2bf46f
author Andrew Scull <ascull@google.com> 1534344524 +0100
committer Andrew Scull <ascull@google.com> 1534785076 +0100

Turn on more linker optimisation.

Discard more unused sections, identical code folding and link time
optimisation. These are things that we will likely want to use when
building out final image so turning them on now will help us catch any
issues they might cause as we're going.

Change-Id: Ibe6e26d0feb1fb899c2050a4b00f36d2b408d647