[PATCH 1/4] eppic: Rename scripts to reflect validity of kernel version

Rename the eppic script to follow the format:
<eppic_script>-<valid from kernel version>_to_<valid until kernel version>.c

Kernel data structures may be modified across kernel releases and
eppic scripts relies on pre-calculated offsets while de-referring
structure members. Any change to the kernel structure will lead to
failure, if the kernel data structure changes are not propagated to
the eppic scripts.

The idea to keep different versions of sample eppic scripts, which
will be valid for a range of kernel releases. This naming convention
will help users to choose the right eppic script version for their
kernel.

Suggested-by: Atsushi Kumagai <ats-kumagai@wm.jp.nec.com>
Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>