staging: vme_user: fix spelling errors

Fix spelling errors reported by codespell tool as below.
bewteen --> between
enty --> entry
Copntroller --> Controller

Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
Link: https://lore.kernel.org/r/aHnTdicud7sW/Zis@bhairav-test.ee.iitb.ac.in


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>