Add <linux/bitmap.h> to kernel-api Bitmap Operations section. Fix kernel-doc nitpicks in <linux/bitmap.h>. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Yury Norov <ynorov@caviumnetworks.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Panchajanya Sarkar <panchajanya@azure-dev.live> (cherry picked from commit c5a37d0d50c685d457f8e5fd7e0168aaad06f006)