Description of problem:
The 6.2 kernels change the content of /etc/ld.so.conf.d/kernel-`uname -r`.conf from
"hwcap 0 nosegneg" to "hwcap 1 nosegneg". In %post, there's an attempt to fix the issue of contradictory settings breaking ldconfig:

if grep --silent '^hwcap 0 nosegneg$' /etc/ld.so.conf.d/kernel-*.conf 2> /dev/null; then
  sed -i '/^hwcap 0 nosegneg$/ s/0/1/' /etc/ld.so.conf.d/kernel-*.conf
fi

Alas, this won't work if an older kernel is coinstalled afterwards.

Version-Release number of selected component (if applicable):
2.6.32-220.el6

How reproducible:
100%

Steps to Reproduce:
1. install RHEL 6.2
2. coinstall a kernel from RHEL 6.1
3. run ldconfig
  
Actual results:
ldconfig aborts with "ldconfig: /etc/ld.so.conf.d/kernel-2.6.32-220.el6.x86_64.conf:6: hwcap index 1 already defined as nosegneg"