Size should minus 1 when calculating 'RelocBaseEnd'

[dennis-tseng99]

context->RelocDir->Size should minus one when calling ImageAddress(). Otherwise
RelocBaseEnd will get NULL address after running ImageAddress() in which address=size.

ImageAddress (void *image, uint64_t size, uint64_t address)
{
        uintptr_t img_addr;

        /* ensure our local pointer isn't bigger than our size */
        if (address >= size)   <---- address=size
                return NULL;
        ........
}

RelocBaseEnd = ImageAddress(orig, size, Section->PointerToRawData + context->RelocDir->Size);

[jsetje]

I ran into this as well, and short of creating new versions of the ImageAddress() range check that test for things like being past the end of the section, this seems reasonable.

I did test this and it "works for me".

[vathpela]

I've force pushed fd43eda over this to make the commit message more informative.