bitops: fix BITS_PER_LONG merge error

Tomas' fix for __BITS_PER_LONG was effectively reverted by a wrong
merge. Fix it and add the related files to MAINTAINERS.

bitmap-for-6.16-rc2

Fix for __GENMASK() and __GENMASK_ULL() in UAPI.

bitmap-for-6.16

Bitmap updates for 6.16-rc1 include:
 - dead code cleanups for cpumasks and nodemasks (me);
 - fixed-width flavors of GENMASK() and BIT() (Vincent, Lucas and me);
 - FIELD_MODIFY() helper (Luo);
 - for_each_node_with_cpus() optimization (me);
 - bitmap-str fixes (Andy).

bitmap-for-6.16

Bitmap updates for 6.16-rc1 include:
 - dead code cleanups for cpumasks and nodemasks (me);
 - fixed-width flavors of GENMASK() and BIT() (Vincent, Lucas and me);
 - FIELD_MODIFY() helper (Luo);
 - for_each_node_with_cpus() optimization (me);
 - bitmap-str fixes (Andy).

bitmap changes for 6.15

This includes:
 - cpumask_next_wrap() rework from me;
 - GENMASK() simplification from I Hsin;
 - rust bindings for cpumasks from Viresh and me;
 - scattered cleanups from Andy, Tamir, Vincent, Ignacio and Joel.

bitmap patches for v6.14.

Hi Linus,

Please pull bitmap patches for v6.14.

This includes const_true() series from Vincent Mailhol, another
__always_inline rework from Nathan Chancellor for RISCV, and a
couple random fixes from Dr. David Alan Gilbert and I Hsin Cheng.

Thanks,
Yury

bitmap-for-6.12

 - switch all bitmamp APIs from inline to __always_inline from Brian Norris;
 - introduce GENMASK_U128() macro from Anshuman Khandual;

Fix for cpumask merge.

bitmap-6.11-rc1

Random fixes for v6.11.

Hi Linus,

Please pull fixes for  bitmaps and biitops. Thoses are random scattered
improvements.

Thanks,
Yury