Add compile option to disable safe mode option in boot flags

Some platforms doe not support safe mode in
set/get system boot options commands, add an compile option to disable it.
Using the below command:
./configure  --disable-boot-flag-safe-mode-support

Tested:
After adding this compile option, below command fails:

// set safe mode in set system boot options command
ipmitool raw 0 8 5 0x80 0xc
Unable to send RAW command (channel=0x0 netfn=0x0 lun=0x0 cmd=0x8 rsp=0xcc):
Invalid data field in request

Signed-off-by: Yong Li <yong.b.li@linux.intel.com>
Change-Id: Ie479a0c68a8e9fc79f99c9d4cc10cdd1e6ceb20e
2 files changed