Add SWUpdate 2023.05

Signed-off-by: Stefano Babic <sbabic@denx.de>

recipes-support/swupdate/swupdate_2023.05.bb

@@ -0,0 +1,3 @@
+require swupdate.inc
+
+SRCREV = "954e8c0b0f24fdd8f17ae7d382ff96622b95111a"

recipes-support/swupdate/swupdate_git.bb

@@ -2,5 +2,5 @@ require swupdate.inc
 
 DEFAULT_PREFERENCE = "-1"
 
-SRCREV ?= "c1faa32d30a8b334eac7db70fd605e2c025055da"
-PV = "2022.12+git${SRCPV}"
+SRCREV ?= "954e8c0b0f24fdd8f17ae7d382ff96622b95111a"
+PV = "2023.05+git${SRCPV}"