ARM: dts: msm: Update reserved debug memory location for CNSS

The reserved debug memory location device tree entry for CNSS needs
to be updated accordingly for MSM8994.

Change-Id: I3306e408a7f6e0b0abc785a79e157f2fa3e2e1bf
CRs-fixed: 685513
Signed-off-by: Yue Ma <yuem@codeaurora.org>