meta-phosphor: packagegroup-obmc-apps: simplify software package

Eliminate the variable indirection for the package content.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I016e6aa370e7d62e20484af4e91250b38c4c01a0
diff --git a/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bb b/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bb
index 37061fc..48b4816 100644
--- a/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bb
+++ b/meta-phosphor/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bb
@@ -148,22 +148,17 @@
         ${VIRTUAL-RUNTIME_obmc-sensors-hwmon} \
         "
 
-${PN}-software-extras = ""
-
-${PN}-software-extras:df-obmc-ubi-fs = " \
-        phosphor-software-manager-updater-ubi \
-        "
-
-${PN}-software-extras:df-phosphor-mmc = " \
-        phosphor-software-manager-updater-mmc \
-        "
-
 SUMMARY:${PN}-software = "Software applications"
 RDEPENDS:${PN}-software = " \
         phosphor-software-manager-download-mgr \
         phosphor-software-manager-updater \
         phosphor-software-manager-version \
-        ${${PN}-software-extras} \
+        "
+RDEPENDS:${PN}-software:append:df-obmc-ubi-fs = " \
+        phosphor-software-manager-updater-ubi \
+        "
+RDEPENDS:${PN}-software:append:df-phosphor-mmc = " \
+        phosphor-software-manager-updater-mmc \
         "
 
 SUMMARY:${PN}-debug-collector = "BMC debug collector"