clk: Neaten clk_summary output

clk: Neaten clk_summary output

  - Limit ruler to 80 characters (was: 81),
  - Widen rate column by 1 for nicer spacing,
  - Right-align numbers and their column headers,
  - Move a newline to reduce the number of seq_printf() calls,
  - Use set_puts() for fixed strings.

Before:

   clock                        enable_cnt  prepare_cnt  rate        accuracy
---------------------------------------------------------------------------------
 extal                          2           2            20000000   0
    thermal                     1           1            20000000   0
    cp                          0           0            10000000   0
       tpu0                     0           0            10000000   0
       tmu0                     0           0            10000000   0
    main                        1           1            20000000   0
       pll3                     0           0            1600000000 0
          ddr                   0           0            200000000  0
          zb3d2                 0           0            200000000  0
          zb3                   0           0            400000000  0
       pll1                     4           4            1560000000 0
          oscclk                0           0            126953     0
          rclk                  1           1            31738      0
             cmt1               0           0            31738      0
             cmt0               1           1            31738      0
          imp                   0           0            390000000  0

After:

   clock                         enable_cnt  prepare_cnt        rate   accuracy
--------------------------------------------------------------------------------
 extal                                    2            2    20000000          0
    thermal                               1            1    20000000          0
    cp                                    0            0    10000000          0
       tpu0                               0            0    10000000          0
       tmu0                               0            0    10000000          0
    main                                  1            1    20000000          0
       pll3                               0            0  1600000000          0
          ddr                             0            0   200000000          0
          zb3d2                           0            0   200000000          0
          zb3                             0            0   400000000          0
       pll1                               4            4  1560000000          0
          oscclk                          0            0      126953          0
          rclk                            1            1       31738          0
             cmt1                         0            0       31738          0
             cmt0                         1            1       31738          0
          imp                             0            0   390000000          0

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mike Turquette <mturquette@linaro.org>