This update for nvidia-open-driver-G07-signed fixes the following issues:

- adding 'ExcludeArch: %ix86 s390x ppc64le' to no longer get autoclines by
  buildservice hoping that this wont't break RPM descriptions for -cuda variant again
- update CUDA variant to 595.58.03
- update non-CUDA version to 595.58.03 (bsc#1260044)
- do not set ExclusiveArch in order to fix RPM description for -cuda variant (bsc#1259719)
- improved RPM description for -cuda and non-cuda variant
- add 'Provides: open-driver-non-cuda-variant = %version' for non-CUDA variant to be able:
    * to distinguish between both variants;
    * to be used by nvidia-open-driver-G07-signed-kmp-meta for TW