fix(macro): fix CAPIO_FREQUENCY macro typo

[comejv]

Going from CAPIOC_FREQUENCE to CAPIO_FREQUENCY according to apache/nuttx#16925

Summary

CAPIOC_FREQUENCE is a typo, should be FREQUENCY. nuttx/pull/16925 fixes this, so the app side should be fixed too.

[simbit18]

@comejv this error occurs

====================================================================================
Configuration/Tool: esp32c6-devkitc/capture
2026-01-21 14:25:53
------------------------------------------------------------------------------------
  Cleaning...
  Configuring...
  Building NuttX...
cap_main.c: In function 'cap_main':
Error: cap_main.c:354:23: error: 'CAPIOC_FREQUENCY' undeclared (first use in this function); did you mean 'CAPIOC_FREQUENCE'?
  354 |       ret = ioctl(fd, CAPIOC_FREQUENCY,
      |                       ^~~~~~~~~~~~~~~~
      |                       CAPIOC_FREQUENCE
cap_main.c:354:23: note: each undeclared identifier is reported only once for each function it appears in
make[2]: *** [/github/workspace/sources/apps/Application.mk:330: cap_main.c.github.workspace.sources.apps.examples.capture.o] Error 1
make[2]: Target 'all' not remade because of errors.
make[1]: *** [Makefile:54: /github/workspace/sources/apps/examples/capture_all] Error 2
make[1]: Target 'all' not remade because of errors.
make: *** [tools/LibTargets.mk:248: /github/workspace/sources/apps/libapps.a] Error 2
make: Target 'all' not remade because of errors.
/github/workspace/sources/nuttx/tools/testbuild.sh: line 385: /github/workspace/sources/nuttx/../nuttx/nuttx.manifest: No such file or directory
  [1/1] Normalize esp32c6-devkitc/capture
====================================================================================

[comejv]

@simbit18 yes it will happen until new definition is merged from apache/nuttx#16925 but tests won't pass there unless the new definition is used here in nuttx-apps, so I don't really know how to go about this except than to force merge on one side first

[simbit18]

OK, understood. I will force the merge.