defconfig: apq8084: Disable panics on HW-correctable L2 parity errors

Single-bit L2 parity errors are hardware-correctable, so it is
not necessary to panic on them.

Change-Id: I869646dd948a2bc6fb3a4936d128cf77fb706255
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>