Add detection for HW feature "intel-gfni"
* configure.ac (gfnisupport, gcry_cv_gcc_inline_asm_gfni) (ENABLE_GFNI_SUPPORT): New. * src/g10lib.h (HWF_INTEL_GFNI): New. * src/hwf-x86.c (detect_x86_gnuc): Add GFNI detection. * src/hwfeatures.c (hwflist): Add "intel-gfni". * doc/gcrypt.texi: Add "intel-gfni" to HW features list.
- Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>