of: Fix phandle endian issues

The flat tree code wasn't fixing the endianness on phandle values when
unflattening the tree, and the code in drivers/of wasn't always doing a
be32_to_cpu before trying to dereference the phandle values.  This patch
fixes them.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

diff --cc drivers/of/base.c
Simple merge

diff --cc drivers/of/fdt.c
Simple merge

diff --cc drivers/of/irq.c
Simple merge