meta-ibm: system1: increase bmcweb upload limit

System1 will utilize the large EMMC configuration seen on p10bmc
machines so increase its http body limit to match what p10bmc gets via
its meta-openpower distro feature override.

Tested:
- Confirmed a large image upload worked

Change-Id: I4d164c3ffb5176cd4fdc5d4c55a268ca71018afe
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/meta-ibm/recipes-phosphor/interfaces/bmcweb_%.bbappend b/meta-ibm/recipes-phosphor/interfaces/bmcweb_%.bbappend
index df200ef..318fe08 100644
--- a/meta-ibm/recipes-phosphor/interfaces/bmcweb_%.bbappend
+++ b/meta-ibm/recipes-phosphor/interfaces/bmcweb_%.bbappend
@@ -19,6 +19,10 @@
     -Dvm-websocket=disabled \
 "
 
+EXTRA_OEMESON:append:system1 = " \
+     -Dhttp-body-limit=400 \
+"
+
 inherit obmc-phosphor-discovery-service
 
 REGISTERED_SERVICES:${PN} += "obmc_redfish:tcp:443:"