meta-phosphor: linux: Enable CONFIG_SCHEDSTATS for systemd-bootchart
systemd-bootchart requires CONFIG_SCHEDSTATS=y to operate. Enabling it
adds 4344 bytes to the p10bmc zImage (used as a test platform in this
instance), which is likely tolerable for a default configuration:
```
$ ls -l zImage.*
-rw-r--r--. 1 andrew andrew 4179240 Jun 2 14:28 zImage.no-schedstats
-rw-r--r--. 1 andrew andrew 4183584 Jun 2 14:19 zImage.schedstats
```
Change-Id: Ie86eaa60a414bb5d62f89584aa674c3b586e0516
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
diff --git a/meta-phosphor/recipes-kernel/linux/linux-%.bbappend b/meta-phosphor/recipes-kernel/linux/linux-%.bbappend
new file mode 100644
index 0000000..32876c4
--- /dev/null
+++ b/meta-phosphor/recipes-kernel/linux/linux-%.bbappend
@@ -0,0 +1,2 @@
+FILESEXTRAPATHS:prepend := "${THISDIR}:"
+SRC_URI:append = " file://systemd-bootchart.cfg"
diff --git a/meta-phosphor/recipes-kernel/linux/systemd-bootchart.cfg b/meta-phosphor/recipes-kernel/linux/systemd-bootchart.cfg
new file mode 100644
index 0000000..a9ef3bd
--- /dev/null
+++ b/meta-phosphor/recipes-kernel/linux/systemd-bootchart.cfg
@@ -0,0 +1 @@
+CONFIG_SCHEDSTATS=y