pgsql: BRIN: mask BRIN_EVACUATE_PAGE for WAL consistency checking

BRIN: mask BRIN_EVACUATE_PAGE for WAL consistency checking

That bit is unlogged and therefore it's wrong to consider it in WAL page
comparison.

Add a test that tickles the case, as branch testing technology allows.

This has been a problem ever since wal consistency checking was
introduced (commit a507b86900f6 for pg10), so backpatch to all supported
branches.

Author: 王海洋 (Haiyang Wang) <wanghaiyang(dot)001(at)bytedance(dot)com>
Reviewed-by: Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>
Discussion: https://postgr.es/m/CACciXAD2UvLMOhc4jX9VvOKt7DtYLr3OYRBhvOZ-jRxtzc_7Jg@mail.gmail.com
Discussion: https://postgr.es/m/CACciXADOfErX9Bx0nzE_SkdfXr6Bbpo5R=v_B6MUTEYW4ya+cg@mail.gmail.com

Branch
------
REL_12_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/49b85e4812d78b4c4601301209597a35c117b16b

Modified Files
--------------
src/backend/access/brin/brin_pageops.c | 7 ++-
src/backend/access/brin/brin_xlog.c | 6 +++
src/test/modules/brin/t/02_wal_consistency.pl | 64 +++++++++++++++++++++++++++
3 files changed, 76 insertions(+), 1 deletion(-)