add include that comes transparently

[tborisow]

Changelog entry

• The code n this header implicitly depends on <util/generic/bitops.h>, add this header explicitly

Changelog category

• Not for changelog (changelog entry is not required)

Additional information

...

[github-actions]

Hi! Thank you for contributing!
The tests on this PR will run after a maintainer adds an ok-to-test label to this PR manually. Thank you for your patience!

[github-actions]

⚪ 2024-10-14 10:39:19 UTC Pre-commit check linux-x86_64-release-asan for b7373dc has started.
⚪ 2024-10-14 10:39:57 UTC Artifacts will be uploaded here
⚪ 2024-10-14 10:43:32 UTC ya make is running...
🟡 2024-10-14 12:03:40 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
12868	12610	0	65	88	105

🟢 2024-10-14 12:04:48 UTC Build successful.
🟢 2024-10-14 12:05:27 UTC ydbd size 5.7 GiB changed* by -80 Bytes, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 2414fb7	merge: b7373dc	diff	diff %
ydbd size	6 095 972 288 Bytes	6 095 972 208 Bytes	-80 Bytes	-0.000%
ydbd stripped size	1 520 294 768 Bytes	1 520 294 704 Bytes	-64 Bytes	-0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}

[github-actions]

⚪ 2024-10-14 10:42:10 UTC Pre-commit check linux-x86_64-relwithdebinfo for b7373dc has started.
⚪ 2024-10-14 10:42:22 UTC Artifacts will be uploaded here
⚪ 2024-10-14 10:45:18 UTC ya make is running...
🟡 2024-10-14 11:46:24 UTC Some tests failed, follow the links below. Going to retry failed tests...

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
75723	61750	0	3	13857	113

⚪ 2024-10-14 11:53:33 UTC ya make is running... (failed tests rerun, try 2)
🟢 2024-10-14 12:04:56 UTC Tests successful.

Test history | Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
108 (only retried tests)	9	0	0	0	99

🟢 2024-10-14 12:05:02 UTC Build successful.
🟢 2024-10-14 12:05:21 UTC ydbd size 2.8 GiB changed* by -32 Bytes, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 2414fb7	merge: b7373dc	diff	diff %
ydbd size	3 009 100 320 Bytes	3 009 100 288 Bytes	-32 Bytes	-0.000%
ydbd stripped size	477 343 736 Bytes	477 343 736 Bytes	0 Bytes	0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}