sap_*_preconfigure/SLES: Enhance saptune handling and detection

[marcelmamula]

Description:

New features

1. Introduced new variable with zypper patterns, which will be used with command instead of package module.
   • Reason: package module does not run zypper in default mode and it skips Recommends packages, resulting in discrepancines.
   • Example: Pattern sap-hana recommends packages that install libltdl7, but package will not install it when using rpm of pattern: patterns-sap-hana
2. Introduced new variables sap_hana_preconfigure_saptune_solution_force and sap_netweaver_preconfigure_saptune_solution_force that allow forcing application of saptune solution regardless if it is already enabled and verified.
   • This follows recommendation that fresh re-enablement is always correct way to go, but variable is false by default.

Fixes

3. Reverted commit 0dc982c
4. Fixed typo in saptune variable validation, resulting in skipping block
5. Re-enabled validation using saptune solution enabled after finding edge case where NETWEAVER can be successfully verified on host with HANA applied (overlap of parameters)
6. Updated RedHat specific variable comments with (RedHat specific) where appropriate: sap_general_preconfigure_packagegroups, sap_general_preconfigure_envgroups
7. Removed saptune solution enabled check from saptune_takeover as it is not necessary, since it is done in configuration step as well.

Testing

All preconfigure roles were tested on SLES 15 SP6 and SLES4SAP 15 SP6

[berndfinger]

LGTM.