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Due to bug in nasm on vinserti32x8 instruction, need nasm v2.13 or
better to build new AVX512 igzip files.  Changed the configure test
and doc to reflect.

Change-Id: Iceaf65187cbb2d63c29f9c0f19346f03bb484a94
Signed-off-by: Greg Tucker <greg.b.tucker@intel.com>