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: 13825.83
- Reference cycles: 8263.6
- UOPS_EXECUTED.THREAD: 79.9
- RETIRE_SLOTS: 64.6
- UOPS_MITE: 0.0
- UOPS_MS: 91.2
- UOPS_PORT_0: 8.0
- UOPS_PORT_1: 13.9
- UOPS_PORT_5: 12.0
- UOPS_PORT_6: 23.33
- UOPS_PORT_23: 1.0
- UOPS_PORT_49: 9.18
- UOPS_PORT_78: 12.18
- 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: 13838.95
- Reference cycles: 8270.9
- UOPS_EXECUTED.THREAD: 79.85
- RETIRE_SLOTS: 65.6
- UOPS_MITE: 1.8
- UOPS_MS: 91.2
- UOPS_PORT_0: 8.0
- UOPS_PORT_1: 13.9
- UOPS_PORT_5: 12.0
- UOPS_PORT_6: 23.28
- UOPS_PORT_23: 1.0
- UOPS_PORT_49: 9.3
- UOPS_PORT_78: 12.3
- DIV_CYCLES: 0.0
- ILD_STALL.LCP: 0.0
- UOPS_MITE>=1: 1.0

With loop_count=2 and unroll_count=1

Code:
```
   0:	41 0f c7 f0          	rdrand r8d
```
Show nanoBench command
Results:
- Instructions retired: 3.0
- Core cycles: 13599.08
- Reference cycles: 8127.33
- UOPS_EXECUTED.THREAD: 80.5
- RETIRE_SLOTS: 64.0
- UOPS_MITE: 0.09
- UOPS_MS: 92.0
- UOPS_PORT_0: 8.0
- UOPS_PORT_1: 14.0
- UOPS_PORT_5: 12.0
- UOPS_PORT_6: 23.75
- UOPS_PORT_23: 1.0
- UOPS_PORT_49: 9.25
- UOPS_PORT_78: 12.25
- DIV_CYCLES: 0.0
- ILD_STALL.LCP: 0.0
- UOPS_MITE>=1: 1.0