build-appliance-image: Update to nanbield head revision

(From OE-Core rev: d0e68072d138ccc1fb5957fdc46a91871eb6a3e1)

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

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

@@ -26,7 +26,7 @@ inherit core-image setuptools3 features_check
 
 REQUIRED_DISTRO_FEATURES += "xattr"
 
-SRCREV ?= "92b141afb480bd0b059ad0d03ef05999036208e4"
+SRCREV ?= "8730750b335c2eb9c3af673262dd83f4a861e075"
 SRC_URI = "git://git.yoctoproject.org/poky;branch=nanbield \
            file://Yocto_Build_Appliance.vmx \
            file://Yocto_Build_Appliance.vmxf \