meta-phosphor: insecure-signing-key-native: set LICENSE field

Set LICENSE field explicitly.

Change-Id: Iadd9f9e6260daebee88d8ab4e04691fd52d97889
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/recipes-phosphor/flash/phosphor-insecure-signing-key-native.bb b/recipes-phosphor/flash/phosphor-insecure-signing-key-native.bb
index 55ebe57..dc2243a 100644
--- a/recipes-phosphor/flash/phosphor-insecure-signing-key-native.bb
+++ b/recipes-phosphor/flash/phosphor-insecure-signing-key-native.bb
@@ -1,10 +1,11 @@
 SUMMARY = "Insecure private key for testing and development"
 DESCRIPTION = "Do not use this key to sign images."
 PR = "r1"
+LICENSE = "Apache-2.0"
+LIC_FILES_CHKSUM = "file://${PHOSPHORBASE}/COPYING.apache-2.0;md5=34400b68072d710fecd0a2940a0d1658"
 
 inherit allarch
 inherit native
-inherit obmc-phosphor-license
 
 SRC_URI += "file://OpenBMC.priv"