build-appliance-image: Update to morty head revision

(From OE-Core rev: 1718f0a6c1de9c23660a9bebfd4420e3c4ed37e6)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/images/build-appliance-image_15.0.0.bb

@@ -22,7 +22,7 @@ IMAGE_FSTYPES = "vmdk"
 
 inherit core-image module-base
 
-SRCREV ?= "d555b59a988154d8ef0073109cf697f09e6e19af"
+SRCREV ?= "a3765887d3efa4c464ef7a00450f218ae2b15eb2"
 SRC_URI = "git://git.yoctoproject.org/poky;branch=morty \
            file://Yocto_Build_Appliance.vmx \
            file://Yocto_Build_Appliance.vmxf \