Use Perl File::Path::make_path rather than system(mkdir -p)
Use Perl File::Path::make_path rather than system(mkdir -p)

This uses a perl module to accomplish the same thing, and the
module automagically takes care of error handling for us via
Carp.

Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.vnet.ibm.com>

open-power/op-test-framework,open-power/op-test-framework,open-power/op-test-framework