ARM: dts: msm: correct the dcc sram size on msmtitanium

Correct the size of the SRAM of DCC which is used to dump the data read
on the AHB bus.

Change-Id: Ie706ffe35909541aa048623ee885415b31cc91dd
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>