[PATCH] powerpc: Add of_find_property function

Add an of_find_property function that returns a struct property
given a property name.  Then change the get_property function to
use that routine internally.

Signed-off-by: Dave Boutcher <sleddog@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --cc arch/powerpc/kernel/prom.c
Simple merge

diff --cc include/asm-powerpc/prom.h
Simple merge