By design, the CortexA53/A57 processors are incapable of
gernerating interrupts or PMU events once a single-bit
error is observed in the L2 caches.
Hence, we need to poll the L2MERRSR register to periodically check
for single bit errors. We need to do this for L2 on both clusters.
Change-Id: I76a440b820f23c9667a5596cf550ff7725ec1cf5
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>