ARM: 8652/1: cache-uniphier: clean up active way setup code

Now, the active way setup function is called with a fixed value zero
for the second argument.  The code can be simpler.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>