meta-hxt: Remove references to HXTBASE

HXTBASE is only used for pointing at licenses...point at the
licenses in oe-core in meta/files/common-licenses instead. to match the
defacto convention used in other oe layers like meta-openembedded.

(From meta-hxt rev: 9a75e608b2bba938d1e25e8d752dc50cab17aebf)

Change-Id: I6b6a0943ecb467a1ab5c205d43d9295f5deee62c
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-hxt/meta-stardragon4800-rep2/recipes-phosphor/workbook/stardragon4800-rep2-config.bb b/meta-hxt/meta-stardragon4800-rep2/recipes-phosphor/workbook/stardragon4800-rep2-config.bb
index de5f7ae..ec8f0de 100644
--- a/meta-hxt/meta-stardragon4800-rep2/recipes-phosphor/workbook/stardragon4800-rep2-config.bb
+++ b/meta-hxt/meta-stardragon4800-rep2/recipes-phosphor/workbook/stardragon4800-rep2-config.bb
@@ -2,7 +2,7 @@
 DESCRIPTION = "Board wiring information for the HXT Rep system."
 PR = "r1"
 LICENSE = "Apache-2.0"
-LIC_FILES_CHKSUM = "file://${HXTBASE}/COPYING.apache-2.0;md5=34400b68072d710fecd0a2940a0d1658"
+LIC_FILES_CHKSUM = "file://${COREBASE}/meta/files/common-licenses/Apache-2.0;md5=89aea4e17d99a7cacdbeed46a0096b10"
 
 inherit allarch
 inherit setuptools