drivers: soc: qcom: Add atoll SoC llcc driver

Add LLCC driver which contains the configuration data required to
program the LLCC on atoll SoC. The configration data controls the
behavior of LLCC by setting priority, size, how the ways are allocated
when clients use the LLCC and so on. Platform specific driver calls into
the common LLCC driver to program this configuration.

Change-Id: I917d862450630d7fde65af71a1881ffd1b9320ef
Signed-off-by: Prateek Sood <prsood@codeaurora.org>