RDRAND (R32) - Throughput and Uops

With 1 independent instruction

With unroll_count=10 and no inner loop

Code:
```
   0:	41 0f c7 f0          	rdrand r8d
```
Show nanoBench command
Results:
- Instructions retired: 1.0
- Core cycles: 608.35
- Reference cycles: 391.67
- UOPS_EXECUTED.THREAD: 15.9
- RETIRE_SLOTS: 16.0
- UOPS_MITE: 0.0
- UOPS_MS: 16.0
- UOPS_PORT_0: 4.02
- UOPS_PORT_1: 3.9
- UOPS_PORT_2: 0.4
- UOPS_PORT_3: 0.5
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 1.3
- UOPS_PORT_6: 5.3
- UOPS_PORT_7: -0.09
- DIV_CYCLES: 0.0
- ILD_STALL.LCP: 0.0
- UOPS_MITE>=1: 0.0

With unroll_count=10, no inner loop, and 1 NOP

Code:

   0:	41 0f c7 f0          	rdrand r8d
   4:	90                   	nop

Show nanoBench command
Results:
- Instructions retired: 2.0
- Core cycles: 607.25
- Reference cycles: 395.83
- UOPS_EXECUTED.THREAD: 15.9
- RETIRE_SLOTS: 17.0
- UOPS_MITE: 1.0
- UOPS_MS: 16.0
- UOPS_PORT_0: 3.9
- UOPS_PORT_1: 3.5
- UOPS_PORT_2: 0.6
- UOPS_PORT_3: 0.7
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 1.5
- UOPS_PORT_6: 5.9
- UOPS_PORT_7: -0.09
- DIV_CYCLES: 0.0
- ILD_STALL.LCP: 0.0
- UOPS_MITE>=1: 1.0

With loop_count=10 and unroll_count=1

Code:
```
   0:	41 0f c7 f0          	rdrand r8d
```
Show nanoBench command
Results:
- Instructions retired: 3.0
- Core cycles: 582.45
- Reference cycles: 397.92
- UOPS_EXECUTED.THREAD: 17.2
- RETIRE_SLOTS: 18.6
- UOPS_MITE: 0.73
- UOPS_MS: 16.0
- UOPS_PORT_0: 4.1
- UOPS_PORT_1: 3.55
- UOPS_PORT_2: 0.5
- UOPS_PORT_3: 0.6
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 1.5
- UOPS_PORT_6: 6.55
- UOPS_PORT_7: -0.09
- DIV_CYCLES: 0.0
- ILD_STALL.LCP: 0.0
- UOPS_MITE>=1: 0.72