pkg/ipmi/ocp: Don't let syscall.SIGINT interrupt flashrom writing RW_VPD
pkg/ipmi/ocp: Don't let syscall.SIGINT interrupt flashrom writing RW_VPD

During flashrom writing RW_VPD should not be interrupted by CTRL-C SIGINT.

Signed-off-by: Johnny Lin <333fa47d5f6015f27e3d6303c9c9b58a54fcf43b@wiwynn.com>

u-root/u-root,u-root/u-root,u-root/u-root