Fix calling SIMD group kernels

The #define of GMX_SIMD*_OR_HIGHER takes place in simd.h, which got
changed late in the evolution of the recent SIMD-module patch, in
order to reduce unwanted module dependencies. However, the explicit
dependency of the group kernel setup code on the SIMD module was not
added. (It seems that the dependency on the old SIMD macros.h was been
satisfied transitively.) In effect, this turned off group-scheme SIMD,
but the silent fallback to C kernels meant there was no red flag until
we got around to measuring performance.

Change-Id: I78842cb191f6188fe4188800399efd2ed99e5543