eglibc: Generate cross testing script during install
EGLIBC has long had cross testing capability, so use
that there are few steps needed on setting up the target
as well as the build host. This patch tries to generate
a script with all the needed environment on build host system
To use this script one needs to setup the target as described
in the testing intructions of eglibc and then this script
can directly interface to the target and run the tests from
eglibc's build directory. To run this script
bash <script> username@testing_hostname/ip
The output can be dumped into a log file for later viewing
and checked for "Error " to see the failed tests
