meta-romulus: Add fan presence yaml config

Romulus has 3 fans using aspeed fan tacho, and has no GPIOs to detect
fan presences.

So assuming the fans are present as long as fan tach is there.

Change-Id: I60f36f8127a437511fde22a4c45458b70b4074ed
Signed-off-by: Lei YU <mine260309@gmail.com>
diff --git a/meta-openbmc-machines/meta-openpower/meta-ibm/meta-romulus/recipes-phosphor/fans/phosphor-fan-presence-config-native%.bbappend b/meta-openbmc-machines/meta-openpower/meta-ibm/meta-romulus/recipes-phosphor/fans/phosphor-fan-presence-config-native%.bbappend
new file mode 100644
index 0000000..72d991c
--- /dev/null
+++ b/meta-openbmc-machines/meta-openpower/meta-ibm/meta-romulus/recipes-phosphor/fans/phosphor-fan-presence-config-native%.bbappend
@@ -0,0 +1 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"