perf jevents: Add set of common metrics based on default ones

perf jevents: Add set of common metrics based on default ones

Add support to getting a common set of metrics from a default
table. It simplifies the generation to add json metrics at the same
time. The metrics added are CPUs_utilized, cs_per_second,
migrations_per_second, page_faults_per_second, insn_per_cycle,
stalled_cycles_per_instruction, frontend_cycles_idle,
backend_cycles_idle, cycles_frequency, branch_frequency and
branch_miss_rate based on the shadow metric definitions.

Following this change the default perf stat output on an alderlake
looks like:
```
$ perf stat -a -- sleep 2

 Performance counter stats for 'system wide':

              0.00 msec cpu-clock                        #    0.000 CPUs utilized
            77,739      context-switches
            15,033      cpu-migrations
           321,313      page-faults
    14,355,634,225      cpu_atom/instructions/           #    1.40  insn per cycle              (35.37%)
   134,561,560,583      cpu_core/instructions/           #    3.44  insn per cycle              (57.85%)
    10,263,836,145      cpu_atom/cycles/                                                        (35.42%)
    39,138,632,894      cpu_core/cycles/                                                        (57.60%)
     2,989,658,777      cpu_atom/branches/                                                      (42.60%)
    32,170,570,388      cpu_core/branches/                                                      (57.39%)
        29,789,870      cpu_atom/branch-misses/          #    1.00% of all branches             (42.69%)
       165,991,152      cpu_core/branch-misses/          #    0.52% of all branches             (57.19%)
                       (software)                 #      nan cs/sec  cs_per_second
             TopdownL1 (cpu_core)                 #     11.9 %  tma_bad_speculation
                                                  #     19.6 %  tma_frontend_bound       (63.97%)
             TopdownL1 (cpu_core)                 #     18.8 %  tma_backend_bound
                                                  #     49.7 %  tma_retiring             (63.97%)
                       (software)                 #      nan faults/sec  page_faults_per_second
                                                  #      nan GHz  cycles_frequency       (42.88%)
                                                  #      nan GHz  cycles_frequency       (69.88%)
             TopdownL1 (cpu_atom)                 #     11.7 %  tma_bad_speculation
                                                  #     29.9 %  tma_retiring             (50.07%)
             TopdownL1 (cpu_atom)                 #     31.3 %  tma_frontend_bound       (43.09%)
                       (cpu_atom)                 #      nan M/sec  branch_frequency     (43.09%)
                                                  #      nan M/sec  branch_frequency     (70.07%)
                                                  #      nan migrations/sec  migrations_per_second
             TopdownL1 (cpu_atom)                 #     27.1 %  tma_backend_bound        (43.08%)
                       (software)                 #      0.0 CPUs  CPUs_utilized
                                                  #      1.4 instructions  insn_per_cycle  (43.04%)
                                                  #      3.5 instructions  insn_per_cycle  (69.99%)
                                                  #      1.0 %  branch_miss_rate         (35.46%)
                                                  #      0.5 %  branch_miss_rate         (65.02%)

       2.005626564 seconds time elapsed
```

Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>