This facilitates "universal" builds, ones that target multiple
architectures, e.g. ARMv5 through ARMv7. See commentary in
Configure for details.
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit c1669e1c205dc8e695fb0c10a655f434e758b9f7)
armcap.c is shared between 32- and 64-bit builds and features link-time
detection of getauxval.
Submitted by: Ard Biesheuvel.
(cherry picked from commit e8d93e342b4b7d43c73e955e81e227c514d389d9)
