Add: Get channel payload support command

Implemented Get Channel Payload Support command (IPMI Spec sec 24.8)
The same is implemented under channel commands, and will be
available for both Host & Net ipmid. Uses channel configuration
to differentiate between session / session-less channel

Tested-by:
1. Verified command executed successfully for session
based channel
ipmitool raw 6 0x4E 0x1 // Command
03 00 15 00 00 00 00 00 // Response
2. Verified sessionless channel error is returned.

Change-Id: I8b294234415b4467aeae6c23c192750471536f4e
Signed-off-by: Saravanan Palanisamy <saravanan.palanisamy@intel.com>
Signed-off-by: Richard Marian Thomaiyar <richard.marian.thomaiyar@linux.intel.com>
diff --git a/host-ipmid-whitelist.conf b/host-ipmid-whitelist.conf
index 7ac432c..961214d 100644
--- a/host-ipmid-whitelist.conf
+++ b/host-ipmid-whitelist.conf
@@ -26,6 +26,7 @@
 0x06:0x36    //<App>:<Get BT Interface Capabilities>
 0x06:0x37    //<App>:<Get System GUID>
 0x06:0x42    //<App>:<Get Channel Info Command>
+0x06:0x4E    //<App>:<Get Channel Payload Support>
 0x06:0x54    //<App>:<Get Channel Cipher Suites>
 0x0A:0x10    //<Storage>:<Get FRU Inventory Area Info>
 0x0A:0x11    //<Storage>:<Read FRU Data>