Enforce power-of-two for history setting in CMakeLists (backport #271)

This is an automatic backport of pull request #271 done by Mergify. Cherry-pick of fb2dca62c7881b913a47002a6206bd0029d7bfea has failed:

On branch mergify/bp/foxy/pr-271
Your branch is up to date with 'origin/foxy'.

You are currently cherry-picking commit fb2dca6.
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Changes to be committed:
    modified:   rmw_microxrcedds_c/CMakeLists.txt

Unmerged paths:
  (use "git add <file>..." to mark resolution)
    both modified:   README.md

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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Entity	Qty	Size per unit
Context	2	5616 B
Topic	8	56 B
Service	4	248 B
Client	4	248 B
Subscription	4	272 B
Publisher	4	280 B
Node	4	208 B
Static input buffer	8	2136 B
Init options	6	64 B
Wait sets	4	56 B
Guard Condition	4	64 B

micro-ROS / rmw_microxrcedds

Enforce power-of-two for history setting in CMakeLists (backport #271) #273

Static memory analysis