Add function to send SMS_ATTN to host

This patch overrides one of the base API and sends a message that
enables the current HOST IPMI BT provider to actually set the SMS_ATTN.

Change-Id: I250ea6bed99e569e493251f6fc298aa7ed7c776f
Signed-off-by: Vishwanatha Subbanna <vishwa@linux.vnet.ibm.com>
3 files changed