[ARM] remove useless setting of VM_RESERVED

remap_pfn_range() takes care of setting the appropriate VM_*
flags itself; there's no need for callers of remap_pfn_range()
to set VM_RESERVED before it is called.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mm/consistent.c

@@ -322,7 +322,6 @@ static int dma_mmap(struct device *dev, struct vm_area_struct *vma,
 
 		if (off < kern_size &&
 		    user_size <= (kern_size - off)) {
-			vma->vm_flags |= VM_RESERVED;
 			ret = remap_pfn_range(vma, vma->vm_start,
 					      page_to_pfn(c->vm_pages) + off,
 					      user_size << PAGE_SHIFT,