Update service unit descriptions

Going for consistency: Phosphor xxx

Change-Id: I04778ed868874ef5004724bc6b31adc4aa2367ad
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/common/recipes-phosphor/system/files/obmc-phosphor-sysd.service b/common/recipes-phosphor/system/files/obmc-phosphor-sysd.service
index 71e0b0c..5a8c9a0 100644
--- a/common/recipes-phosphor/system/files/obmc-phosphor-sysd.service
+++ b/common/recipes-phosphor/system/files/obmc-phosphor-sysd.service
@@ -1,5 +1,5 @@
 [Unit]
-Description=Phosphor OpenBMC system management daemon
+Description=Phosphor System Manager
 
 [Service]
 Restart=always