Add sections to Poly1305 ARM asm code.

This code isn't generated by perlasm and so the section directives need
to be added manually.

Change-Id: I46158741743859679decbce99097fe6071bf8012
Reviewed-on: https://boringssl-review.googlesource.com/6005
Reviewed-by: Adam Langley <agl@google.com>
1 file changed