fixup Move (tool: fix BASE_DIR in build.conf)
fixup Move (fix tool path in Makefiles)
fixup Move (fix tool path in gcc and gdb ports)
Unify 'make prepare' between libports and ports
hw: make Processor_client::_processor protected

ref #1126
hw: turn Cortex_a9::Processor_driver into a class

ref #1126
hw & rpi: provide Pic::MAX_INTERRUPT_ID

ref #1126
hw & cortex_a9: do lazy FPU-context switch

ref #1126
base & cortex_a9: enable FPU

ref #1126
base: test for the pseudo-parallel use of an FPU

fix #1126