Suppress assembling one file on x86-32.rhel.5

This one's subtle.  We got the following compile failure on that
platform:

[2014-11-19 19:56:38]  ../libcrypto.so: undefined reference to `OPENSSL_ia32_cpuid'

A quick internet search shows that the same problem happened when
building in mingw, and that was resolved (or at least worked around)
by configuring with "no-asm".  This worked and produced a working
oss/openssl build for at least the 0.9.8 series.