meson.build: change operator combining bools from + to and

upstream meson stopped allowing combining boolean with the plus
operator, and now requires using the logical and operator

reference:
https://github.com/mesonbuild/meson/commit/43302d3296baff6aeaf8e03f5d701b0402e37a6c

Fixes: #20632
(cherry picked from commit c29537f3)