palmetto: Update I2C hwmon paths for the 5.0 kernel

In the 5.0 Linux kernel, an I2C device path segment changed:
    i2c@1e78a000 -> bus@1e78a000

(From meta-ibm rev: bf1862a9b9bc82683d12036edc247f9f4ea4d13c)

Change-Id: I909073424a7b0a5c677307fe3b4ab25cab051cc9
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-ibm/meta-palmetto/recipes-phosphor/sensors/phosphor-hwmon_%.bbappend b/meta-ibm/meta-palmetto/recipes-phosphor/sensors/phosphor-hwmon_%.bbappend
index e904dc0..c3650f4 100644
--- a/meta-ibm/meta-palmetto/recipes-phosphor/sensors/phosphor-hwmon_%.bbappend
+++ b/meta-ibm/meta-palmetto/recipes-phosphor/sensors/phosphor-hwmon_%.bbappend
@@ -1,9 +1,9 @@
 FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
 
 NAMES = " \
-        i2c@1e78a000/i2c-bus@40/rtc@68 \
-        i2c@1e78a000/i2c-bus@c0/tmp423@4c \
-        i2c@1e78a000/i2c-bus@100/occ-hwmon@50 \
+        bus@1e78a000/i2c-bus@40/rtc@68 \
+        bus@1e78a000/i2c-bus@c0/tmp423@4c \
+        bus@1e78a000/i2c-bus@100/occ-hwmon@50 \
         "
 ITEMSFMT = "ahb/apb/{0}.conf"