This changes the API of xfa from
XFA(array_name, prio) type element_name = INITIALIZER;
to
XFA(type, array_name, prio) element_name = INITIALIZER;
this allows forcing natural alignment of the type, fixing failing tests
on `native64`.
Enabling `ztimer_msec` through `sdmmc` in case `ztimer_usec` is not enabled will not work if the dependencies for `sdmmc` are resolved before the dependencies of another module that enables `ztimer_usec`. Therefore, `ztimer_msec` has to be enabled by `sdmmc`
