Move the FVP power driver to a directory under the FVP platform
port as this is not a generically usable driver.
Change-Id: Ibc78bd88752eb3e3964336741488349ac345f4f0
Move almost all system include files to a logical sub-directory
under ./include. The only remaining system include directories
not under ./include are specific to the platform. Move the
corresponding source files to match the include directory
structure.
Also remove pm.h as it is no longer used.
Change-Id: Ie5ea6368ec5fad459f3e8a802ad129135527f0b3