microwatt/hello_world
Benjamin Herrenschmidt d654667304 console: Add support for the 16550 UART
And rebuild various binaries

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
..
Makefile Makefile: Improve clean a bit
head.S
hello_world.bin console: Add support for the 16550 UART
hello_world.c console: Cleanup console API
hello_world.elf console: Add support for the 16550 UART
hello_world.hex console: Add support for the 16550 UART
powerpc.lds