RDSEED (R64) - Throughput and Uops

With 1 independent instruction

With unroll_count=10 and no inner loop

Code:
```
   0:	49 0f c7 f8          	rdseed r8
```
Show nanoBench command
Results:
- Instructions retired: 1.0
- Core cycles: 608.12
- Reference cycles: 389.58
- UOPS_EXECUTED.THREAD: 15.9
- RETIRE_SLOTS: 16.0
- UOPS_MITE: 0.0
- UOPS_MS: 16.0
- UOPS_PORT_0: 4.27
- UOPS_PORT_1: 3.6
- UOPS_PORT_2: 0.4
- UOPS_PORT_3: 0.5
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 1.4
- UOPS_PORT_6: 5.5
- 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:	49 0f c7 f8          	rdseed r8
   4:	90                   	nop

Show nanoBench command
Results:
- Instructions retired: 2.0
- Core cycles: 607.45
- Reference cycles: 387.5
- UOPS_EXECUTED.THREAD: 16.2
- RETIRE_SLOTS: 17.0
- UOPS_MITE: 1.0
- UOPS_MS: 16.0
- UOPS_PORT_0: 3.6
- UOPS_PORT_1: 3.6
- UOPS_PORT_2: 0.5
- UOPS_PORT_3: 0.6
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 1.4
- UOPS_PORT_6: 6.2
- 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:	49 0f c7 f8          	rdseed r8
```
Show nanoBench command
Results:
- Instructions retired: 3.0
- Core cycles: 606.85
- Reference cycles: 389.58
- UOPS_EXECUTED.THREAD: 16.95
- RETIRE_SLOTS: 18.6
- UOPS_MITE: 0.6
- UOPS_MS: 16.0
- UOPS_PORT_0: 4.2
- UOPS_PORT_1: 3.7
- UOPS_PORT_2: 0.5
- UOPS_PORT_3: 0.6
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 1.5
- UOPS_PORT_6: 6.5
- UOPS_PORT_7: -0.09
- DIV_CYCLES: 0.0
- ILD_STALL.LCP: 0.0
- UOPS_MITE>=1: 0.47