[DRA7][STATCOLL] Touch up formatting style

Currently there is no alignment of data, nor is information provided
w.r.t the units of the data being depicted.

For example (memtester running in background):
omapconf trace bw --m0 ma_mpu --m1 ma_mpu --p1 emif1 --p0 emif1 --m2 ma_mpu --p2 emif1 --m3 dss --p3 emif1

Current Output format:
Counter: 0  Master: ma_mpu  Transaction: w Probe: emif1
Counter: 1  Master: ma_mpu  Transaction: w Probe: emif1
Counter: 2  Master: ma_mpu  Transaction: r Probe: emif1
Counter: 3  Master: dss  Transaction: r Probe: emif1
delay in us: 1000000
overflow delay in us: 1000000 (iterations=1)
accumulation type: 2
iterations (0=infinite): 0
Overflow counter index: DISABLED (overflow delay used)
Overflow threshold: DISABLED (overflow delay used)
time: 656882508 656849727 32781 -> 211.63 211.63 389.74 0.00
time: 656915293 656882508 32785 -> 151.33 151.33 423.28 0.00
time: 656948082 656915293 32789 -> 222.05 222.05 385.83 0.00
time: 656980873 656948082 32791 -> 226.93 226.93 381.06 0.00

With this change, this becomes:
Counter: 0  Master:          ma_mpu Transaction:  w Probe: emif1
Counter: 1  Master:          ma_mpu Transaction:  w Probe: emif1
Counter: 2  Master:          ma_mpu Transaction:  r Probe: emif1
Counter: 3  Master:             dss Transaction:  r Probe: emif1
delay in us: 1000000
overflow delay in us: 1000000 (iterations=1)
accumulation type: 2
iterations (0=infinite): 0
Overflow counter index: DISABLED (overflow delay used)
Overflow threshold: DISABLED (overflow delay used)
              Time Stamp(32KHz ticks) ->   Throughput(MB/s)
time:         End       Start   Delta ->   Counter0   Counter1   Counter2   Counter3
time:   660420813   660388035   32778 ->     753.04     753.04    1387.92       0.00
time:   660453590   660420814   32776 ->     764.95     764.95    1400.03       0.00
time:   660486366   660453590   32776 ->     704.70     704.70    1428.90       0.00

Signed-off-by: Nishanth Menon <nm@ti.com>