IPMI Plugin

FRU Read fix

Adding some resilience in reading FRU through the BMC. Sometimes the BMC
fails to respond in a timely manner causing timeouts, or it might
encounter some errors in reading the FRU device, usually via the I2C
interface.
IPMI Plugin

Added an upper limit for retries to retrieve FRU data
IPMI Plugin

Incrementing the fail counter for fru read