build-appliance-image: Update to kirkstone head revision

(From OE-Core rev: d381eeb5e70bd0ce9e78032c909e4a23564f4dd7)

Signed-off-by: Steve Sakoman <steve@sakoman.com>

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

@@ -24,7 +24,7 @@ IMAGE_FSTYPES = "wic.vmdk wic.vhd wic.vhdx"
 
 inherit core-image setuptools3
 
-SRCREV ?= "3c825671cb8f30e6205f1bcf177f3432161295f5"
+SRCREV ?= "49e837cefaa0d1844b32ff788c6e9de246a3a739"
 SRC_URI = "git://git.yoctoproject.org/poky;branch=kirkstone \
            file://Yocto_Build_Appliance.vmx \
            file://Yocto_Build_Appliance.vmxf \