Hi All,
Recently we discovered a bug in cache-debugfs code. Problem is because 
of static variable (addrstart ) used to remember icache/dcache address 
array start address.
As its static the addrstart ends up with incorrect value after few 
passes of the function.

ex: Correct icache address array start address is 0xF000 0000 but with 
the existing code the start address ends up at 0xF000 8000

This patch makes the variable non-static, reset the start address every 
time it enters the function and cleanup unnecessary variables.

Thanks,
srini