phosphor-software-manager: Add MEDIA_DIR config

Configure MEDIA_DIR to /run/media for static flash layout;
Configure MEDIA_DIR to /media which is default for ubi-fs.

Resolves openbmc/phosphor-bmc-code-mgmt#3

Tested: Verify that the MEDIA_DIR is set to /run/media for Romulus
        build, and set to /media for Witherspoon build.

(From meta-phosphor rev: f43eb6ee89433e4898cbdb1532963f038419c003)

Change-Id: If96c2ee135d314bd6de0cd745c6a871b75183fe1
Signed-off-by: Lei YU <mine260309@gmail.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-phosphor/common/recipes-phosphor/flash/phosphor-software-manager.bb b/meta-phosphor/common/recipes-phosphor/flash/phosphor-software-manager.bb
index f949801..eb2468d 100644
--- a/meta-phosphor/common/recipes-phosphor/flash/phosphor-software-manager.bb
+++ b/meta-phosphor/common/recipes-phosphor/flash/phosphor-software-manager.bb
@@ -56,6 +56,9 @@
     sdbusplus \
     virtual-obmc-image-manager \
 "
+EXTRA_OECONF += " \
+    MEDIA_DIR=/run/media \
+"
 
 RPROVIDES_${PN}-version += " \
     virtual-obmc-image-manager \