If machine supports two image areas and machine is running from temporary side of image, then attempt to update flash image may automatically commit temporary side of image to Permanent side.
If machine supports two image areas and machine is running from
temporary side of image, then attempt to update flash image
may automatically commit temporary side of image to Permanent
side.

This patch introduces new flag to stop auto overwrite.

Requested-by: Paul Clarke <793d6d7c60bd6329d6f91fdb8c1b53aab99bf3da@us.ibm.com>
Signed-off-by: Vasant Hegde <a6d753843573f7bfed5075c1e875b0be8007a0ab@linux.vnet.ibm.com>

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