soc: qcom: Add APB support for DCCV2

Add support to configure DCC with APB access. We can use the
configuration scripts to program DCC in order to read and
write over APB.

Change-Id: I7d3f54a2f1b72b848472d106164015a210de385b
Signed-off-by: Satyajit Desai <sadesai@codeaurora.org>