* Update DYNAMIC_ARCH list of ARM64 targets for gmake
* Update arm64 cpu list for runtime detection
* Update DYNAMIC_ARCH list of ARM64 targets for cmake and add POWERPC targets
* Add automatic fixups for OSX/IOS cross-compilation
* Add OSX/IOS cross-compilation test to Travis CI
* Handle platforms that lack hwcap.h by falling back to ARMV8
* Fix PROLOGUE for OSX/IOS
Enable DYNAMIC_ARCH feature on ARM64. This patch uses the cpuid
feature in linux kernel to detect the core type at runtime
(https://www.kernel.org/doc/Documentation/arm64/cpu-feature-registers.txt).
If this feature is missing in kernel, then the user should use the
OPENBLAS_CORETYPE env variable to select the desired core type.
Ali Saidi
Martin Kroeker
Ashwin Sekhar T K