powerpc: Convert sysfs cache code to of_find_next_cache_node()
powerpc: Convert sysfs cache code to of_find_next_cache_node()

Using the common code means that more complete cache information will
provided in sysfs on platforms that don't use the l2-cache property
convention.

Signed-off-by: Nathan Lynch <e04de97a81056a5c7ecb3646886e1cc27299320d@pobox.com>
Signed-off-by: Paul Mackerras <19a0ba370c443ba08d20b5061586430ab449ee8c@samba.org>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas