- add support for the 64MB NOR CFI01 flash available at
0x34000000 on the versatilepb board
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0225d/BBAJIHEC.html

- tested with barebox bootloader
Signed-off-by: NEric Bénard <eric@eukrea.com>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>