soc: qcom: dcc: Avoid huge memory allcation

Check size of DCC configuration. Limit the size according
to SRAM size.

CRs-Fixed: 2224975
Change-Id: I40f4211468c93ece42b85e1f2d326b16965bce22
Signed-off-by: Shaoqing Liu <shaoqingliu@codeaurora.org>