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lisa._assets.kmodules.lisa: Don't rely on rq->cpu_capacity_orig anymore

Darryl Green requested to merge github/fork/deggeman/fix_rqinv_test_load_correctness into main

Created by: deggeman

The kernel commit 7bc263840bc3 ("sched/topology: Consolidate and clean up access to a CPU's max compute") removed rq->cpu_capacity_orig so we can't use it anymore to retrieve the original CPU capacity nor for setting the FREQ_INVARIANCE kernel feature in LISA.

Replace rq->cpu_capacity_orig with arch_scale_cpu_capacity(cpu) in Lisa trace module's rq_cpu_orig_capacity() and remove the HAS_MEMBER(struct, rq, cpu_capacity_orig) check from the FREQ_INVARIANCE test.

Since arch_scale_cpu_capacity(cpu) exists in the kernel for a long time we don't have to take care of activating this only for newer Linux kernel versions.

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