Support chassis bootdev clear-cmos

Implement the set/get the CMOS clear data 2 of the boot option
parameters boot flags(0x05).

Tested:
1. Set the clear-cmos to yes
   # ipmitool chassis bootdev none clear-cmos=yes
2. Get the bootparam 0x05
   # ipmitool chassis bootparam get 5
   Boot parameter version: 1
   Boot parameter 5 is valid/unlocked
   Boot parameter data: a080000000
    Boot Flags :
      - Boot Flag Valid
      - Options apply to only next boot
      - BIOS EFI boot
      - CMOS Clear
      - Boot Device Selector : No override
      - BIOS verbosity : System Default
      - Console Redirection control : Console redirection occurs per
        BIOS configuration setting (default)
      - BIOS Mux Control Override : BIOS uses recommended setting of
        the mux at the end of POST

Signed-off-by: Hieu Huynh <hieuh@os.amperecomputing.com>
Change-Id: I7312106977f8aef5d781dd276eecf9af279a7dc3
1 file changed