enable Pebble on 32 bits and OpenBSD too

[ucwong]

No description provided.

[codecov]

Codecov Report

Merging #1763 (cb9dec2) into master (2bafe29) will decrease coverage by 0.01%.
Report is 4 commits behind head on master.
The diff coverage is 0.00%.

❗ Current head cb9dec2 differs from pull request most recent head cb16e1c. Consider uploading reports for the commit cb16e1c to get more accurate results

@@            Coverage Diff             @@
##           master    #1763      +/-   ##
==========================================
- Coverage   52.68%   52.68%   -0.01%     
==========================================
  Files         486      485       -1     
  Lines       60476    60469       -7     
==========================================
- Hits        31861    31857       -4     
+ Misses      26168    26162       -6     
- Partials     2447     2450       +3     

Files	Coverage Δ
cmd/utils/flags.go	1.83% <ø> (ø)
common/types.go	64.58% <ø> (ø)
ctxcdb/pebble/pebble.go	37.50% <0.00%> (ø)
core/rawdb/database.go	9.55% <0.00%> (+0.06%)	⬆️

... and 12 files with indirect coverage changes