drivers: llcc: Remove programming of cache override registers

cache override registers are expected configured by firmware
as one time settings, So remove these register programming.

Change-Id: I1a78afc7f772fcfd4997040efc82315b5a09a693
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
Signed-off-by: Raghavendra Rao Ananta <rananta@codeaurora.org>