[PATCH v14 3/4] SUPPORT.md: Document PSCI SYSTEM_SUSPEND support for guests

[Mykola Kvach <xakep.amatop@xxxxxxxxx>]

From: Mykola Kvach <mykola_kvach@xxxxxxxx>

Add a new entry under the "Virtual Hardware, Hypervisor" section
documenting support for the optional PSCI SYSTEM_SUSPEND function
exposed to guests.

This function is available via the virtual PSCI interface and allows
guest domains (domUs) to initiate system suspend operations.

The feature is currently marked as "Tech Preview".

Signed-off-by: Mykola Kvach <mykola_kvach@xxxxxxxx>
Acked-by: Julien Grall <jgrall@xxxxxxxxxx>
---
Changes in V14:
- fixes in commit message.
---
 SUPPORT.md | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/SUPPORT.md b/SUPPORT.md
index d441bccf37..8e7ab7cb3e 100644
--- a/SUPPORT.md
+++ b/SUPPORT.md
@@ -962,8 +962,9 @@ Emulated PSCI interface exposed to guests. We support all 
mandatory
 functions of PSCI 1.1. See below for the list of optional PSCI call
 implemented and their status.
 
-   Status, Mandatory: Supported
-   Status, MIGRATE_INFO_TYPE: Supported
+    Status, Mandatory: Supported
+    Status, MIGRATE_INFO_TYPE: Supported
+    Status, SYSTEM_SUSPEND: Tech Preview
 
 ## Virtual Hardware, QEMU
 
-- 
2.43.0