Doc: libcrmservice: Classify two Coverity defects as false positives

This makes no practical difference, but it classifies these two defects
as "false positives" rather than as "intentional" (the default).

I'm leaving the other coverity code-line annotations alone, because most
or all of them are being addressed by other concurrent pull requests.

https://documentation.blackduck.com/bundle/coverity-docs/page/customizing_coverity/topics/annotations/c_annotations_c_cpp_code-line.html#annotations_c_cpp_code-line_annotations

Signed-off-by: Reid Wahl <nrwahl@protonmail.com>