eog-window: use correct type for display_profile
cmsOpenProfileFromMem returns a cmsHPROFILE, EogImage expects a cmsHPROFILE
Except we were storing it a cmsHPROFILE *
Complete fluke I noticed this, and thought it was odd that we had a pointer to a handle.
Looks like this has been around since LCMS was introduced: d66242aa