obmc-phosphor-image: improve description

Make it clear that obmc-phosphor-image is a full feature image and not a
minimal image.

(From meta-phosphor rev: 1a757e0faf3a6c343b25dbee0cf084309054380e)

Change-Id: I9f87d1a1661db9fdc6d3c69cc5b6202d3e9c9629
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-phosphor/recipes-phosphor/images/obmc-phosphor-image.bb b/meta-phosphor/recipes-phosphor/images/obmc-phosphor-image.bb
index c13a132..dc7050a 100644
--- a/meta-phosphor/recipes-phosphor/images/obmc-phosphor-image.bb
+++ b/meta-phosphor/recipes-phosphor/images/obmc-phosphor-image.bb
@@ -1,4 +1,6 @@
-DESCRIPTION = "Image with Phosphor, an OpenBMC framework."
+DESCRIPTION = "Image with Phosphor, a software stack for hardware management \
+in devices with baseboard management controllers.  The image supports the \
+full OpenBMC feature set for devices of all types."
 
 IMAGE_LINGUAS = ""