SVE popcount support

    Attachment (v10-0001-Rename-TRY_POPCNT_FAST-to-TRY_POPCNT_X86_64.patch) at 2025-03-27 03:38:42 from Nathan Bossart <nathandbossart at gmail.com> (Patch: Yes)
    Attachment (v9-0001-Rename-TRY_POPCNT_FAST-to-TRY_POPCNT_X86_64.patch) at 2025-03-26 21:44:24 from Nathan Bossart <nathandbossart at gmail.com> (Patch: Yes)
    Attachment (v8-0001-Rename-TRY_POPCNT_FAST-to-POPCNT_X86_64.patch) at 2025-03-22 03:42:06 from Nathan Bossart <nathandbossart at gmail.com> (Patch: Yes)
    Attachment (v7-0001-SVE-and-NEON-support-for-pg_popcount.patch) at 2025-03-19 11:08:52 from "Chiranmoy.Bhattacharya at fujitsu.com" <Chiranmoy.Bhattacharya at fujitsu.com> (Patch: Yes)
    Attachment (v6-0001-SVE-and-NEON-support-for-popcount.patch) at 2025-03-12 10:34:46 from "Chiranmoy.Bhattacharya at fujitsu.com" <Chiranmoy.Bhattacharya at fujitsu.com> (Patch: Yes)
    Attachment (v5-0001-SVE-support-for-popcount-and-popcount-masked.patch) at 2025-02-19 09:31:50 from "Chiranmoy.Bhattacharya at fujitsu.com" <Chiranmoy.Bhattacharya at fujitsu.com> (Patch: Yes)
    Attachment (v4-0001-SVE-support-for-popcount-and-popcount-masked.patch) at 2025-02-04 09:01:33 from "Chiranmoy.Bhattacharya at fujitsu.com" <Chiranmoy.Bhattacharya at fujitsu.com> (Patch: Yes)
    Attachment (v3-0001-SVE-support-for-popcount-and-popcount-masked.patch) at 2025-01-10 11:19:42 from "Chiranmoy.Bhattacharya at fujitsu.com" <Chiranmoy.Bhattacharya at fujitsu.com> (Patch: Yes)
    Attachment (FJ - AWS Comparison.xlsx) at 2024-12-11 09:06:15 from "Chiranmoy.Bhattacharya at fujitsu.com" <Chiranmoy.Bhattacharya at fujitsu.com> (Patch: No)
    Attachment (PG-popcount-perf-comparison.png) at 2024-12-09 16:36:58 from "Malladi, Rama" <ramamalladi at hotmail.com> (Patch: No)
    Attachment (v1-0001-SVE-support-for-popcount-and-popcount-masked.patch) at 2024-12-09 06:21:37 from "Devanga.Susmitha at fujitsu.com" <Devanga.Susmitha at fujitsu.com> (Patch: Yes)
    Attachment (SVE-popcount-implementation-comparison.png) at 2024-12-04 14:51:39 from "Malladi, Rama" <ramamalladi at hotmail.com> (Patch: No)