The Android SDK version against which Chromium builds is too old to
include sys/auxv.h. This change switches the ARM code to use a weak
pointer for getauxval and to hard code the aux value numbers.
It also switches the license on cpu-arm.c because there's no OpenSSL
left in there now.
Change-Id: I440cb9d533a06d8b245b189d8e5148fa33e29412
Reviewed-on: https://boringssl-review.googlesource.com/2880
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
d749af7ab1