plat/arm: Move fconf population after the enablement of MMU

In BL2, fw_config's population happened before the cache gets
enabled.
Hence to boost the performance, moved fw_config's population
after cache gets enabled (i.e. after MMU gets enabled).

Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
Change-Id: I2e75cabd76b1cb7a660f6b72f409ab40d2877284
5 files changed