iiod: CMakeLists: make sure to log usb-dmabuf support

[nunojsa]

Make sure to log if IIO usb DMABUF support is enabled or not.

PR Type

• Bug fix (a change that fixes an issue)
• New feature (a change that adds new functionality)
• Breaking change (a change that affects other repos or cause CIs to fail)

PR Checklist

• I have conducted a self-review of my own code changes
• I have commented new code, particulary complex or unclear areas
• I have checked that I did not intoduced new warnings or errors (CI output)
• I have checked that components that use libiio did not get broken
• I have updated the documentation accordingly (GitHub Pages, READMEs, etc)

[rgetz]

If you are going to fix one, might as well fix them all - checking on main, that would include:

This patch fixes:

./iiod/CMakeLists.txt
WITH_IIOD_USB_DMABUF : 

but these aren't included:

./CMakeLists.txt
BUILD_SHARED_LIBS : 
COMPILE_WARNING_AS_ERROR : 
OSX_FRAMEWORK : 
WITH_GCOV : 
WITH_LOCAL_CONFIG : 

list generated with:

for f in $(find ./ -name CMakeLists.txt | grep -v deps) ; do echo ${f} ; for i in $(grep option[[:space:]]*\( ${f} | sed -e "s/^[[:space:]]*//g" -e "s/(/ /g" | awk '{print $2}' | sort | uniq) ; do echo -n "$i : " ; a=$(grep toggle_iio_feature ${f} | grep "{$i}"); if [ -z "${a}" ] ; then grep ${i} $(find ./ -name CMakeLists.txt | grep -v deps) | grep toggle_iio_feature; echo "";  else echo ${a} ; fi;  done | sed '/^[[:space:]]*$/d' |  grep -v toggle_iio_feature;  done

[nunojsa]

v2:

• Added missing options (and changes commit message accordingly)

[rgetz]

Looks good to me. Thanks

[rgetz]

Only other thing to do - would be to add check into: ./CI/azure/check_README_BUILD.sh (which already checks options).
if you feel so inclined.... Totally not necessary...