meta-phosphor: gnupg: apply space savings everywhere

Somehow the bbappend for gnupg was only applied to 'gbmc'
systems.  Apply this to all openbmc.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I36079311f87a77d38433b3124ce72d41086b1c18
diff --git a/meta-phosphor/recipes-support/gnupg/gnupg_%.bbappend b/meta-phosphor/recipes-support/gnupg/gnupg_%.bbappend
index 3f2f4f9..9b62a79 100644
--- a/meta-phosphor/recipes-support/gnupg/gnupg_%.bbappend
+++ b/meta-phosphor/recipes-support/gnupg/gnupg_%.bbappend
@@ -1,2 +1,2 @@
 # Remove unneeded gnupg help files to save space
-EXTRA_OECONF:append:gbmc = " --disable-doc"
+EXTRA_OECONF:append:openbmc-phosphor = " --disable-doc"