set_power_on: handle endianess reading max latency
set_power_on: handle endianess reading max latency

set_power_on reads device-tree to get the max latency value,
which is in a big endian format.  This needs to be converted
for little endian architectures.

Signed-off-by: Thomas Falcon <3be58c5f4f5b8a6fb702b2062dd3fbac29655c50@linux.vnet.ibm.com>

leitao/powerpc-ibm-utils-debian,kamalesh-babulal/powerpc-utils,mdroth/powerpc-utils,kamalesh-babulal/powerpc-utils,mdroth/powerpc-utils,leitao/powerpc-ibm-utils-debian,shenki/powerpc-utils,leitao/powerpc-ibm-utils-debian,shenki/powerpc-utils,mdroth/powerpc-utils,kamalesh-babulal/powerpc-utils,shenki/powerpc-utils