Integrate Broadcom Devices in amd-smi framework

[mcharles-brcm]

As part of this feature,

1. Added BRCM devices in amd-smi framework
2. The affected command is 'amd-smi list'
3. Discovered and added BRCM's NIC and SWITCH devices in the list
4. The discovery is specific to sysfs entries, which is created by BRCM driver. Hence, without BRCM driver the necessary NIC and SWITCH devices will not be listed in the list command
5. As of now added BFD and UUID elements added as part of the individual devices

Updated (1/27)

1. Added BRCM devices as part of amd-smi monitor command
2. Very limited monitor attributes are added as part of this feature
3. The affected command is 'amd-smi monitor'
4. If hwmon sysfs entry not created for the BRCM NIC devices then those controllers are removed from the monitor command
5. NIC's Monitor Attributes:
   i) NIC_TEMP_CURRENT
   ii) NIC_TEMP_CRIT_ALARM
   iii) NIC_TEMP_EMERGENCY_ALARM
   iv) NIC_TEMP_SHUTDOWN_ALARM
   v) NIC_TEMP_MAX_ALARM
6. SWITCH's Monitor Attributes:
   i) CURRENT_LINK_SPEED
   ii) MAX_LINK_SPEED
   iii) CURRENT_LINK_WIDTH
   iv) MAX_LINK_WIDTH