openpower: ekb: srcrev bump a9996cb686..79f40fbad5

Commits included:
 - p10_sbe_scratch_regs -- remove PAUC assertion
 - Updates with latest pub-ekb version

Signed-off-by: Jayanth Othayoth <ojayanth@in.ibm.com>
Change-Id: I14cda16ae2a95afe9aca8a024ba4204e7b80d794
diff --git a/meta-openpower/recipes-bsp/ekb/ekb.inc b/meta-openpower/recipes-bsp/ekb/ekb.inc
index ee22ab7..2f5daa2 100644
--- a/meta-openpower/recipes-bsp/ekb/ekb.inc
+++ b/meta-openpower/recipes-bsp/ekb/ekb.inc
@@ -1,6 +1,6 @@
 EKB_BRANCH = "main-p10"
 EKB_URI = "git://git@github.com/open-power/pub-ekb;branch=${EKB_BRANCH};protocol=https"
-EKB_REV = "a9996cb6861198688010522baed369b0af0e6aca"
+EKB_REV = "79f40fbad5c15d41347a739cd3bcb9ff66e5bac9"
 
 REQ_ATTRS_XMLS = "hwpf/fapi2/xml/attribute_info/chip_attributes.xml \
            hwpf/fapi2/xml/attribute_info/common_attributes.xml \