Adding checking to prevent conflict image size

Adding necessary checking to api v1 controller, to prevent client
provide conflict image size by '--location' and '--size' arguments.

Fixes bug: 1220744
docImpact

Change-Id: I0b846dd885ea6b675495058ac038eb9b5777fb81
Signed-off-by: Zhi Yan Liu <zhiyanl@cn.ibm.com>
Merge "Adding checking to prevent conflict image size"