wspoon: Update fan pres I2C path for 5.0 kernel

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

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: I6aa0cb5ca84f9d0f6a7c563313951527c97b3319
diff --git a/meta-witherspoon/recipes-phosphor/fans/phosphor-fan-presence-config-native/config.yaml b/meta-witherspoon/recipes-phosphor/fans/phosphor-fan-presence-config-native/config.yaml
index c5be29c..1c26fc2 100644
--- a/meta-witherspoon/recipes-phosphor/fans/phosphor-fan-presence-config-native/config.yaml
+++ b/meta-witherspoon/recipes-phosphor/fans/phosphor-fan-presence-config-native/config.yaml
@@ -3,7 +3,7 @@
   methods:
     - type: gpio
       key: 4
-      physpath: /sys/devices/platform/ahb/ahb:apb/ahb:apb:i2c@1e78a000/1e78a100.i2c-bus/i2c-3/3-0060
+      physpath: /sys/devices/platform/ahb/ahb:apb/ahb:apb:bus@1e78a000/1e78a100.i2c-bus/i2c-3/3-0060
       devpath: /dev/input/by-path/platform-gpio-keys-polled-event
     - type: tach
       sensors:
@@ -17,7 +17,7 @@
   methods:
     - type: gpio
       key: 5
-      physpath: /sys/devices/platform/ahb/ahb:apb/ahb:apb:i2c@1e78a000/1e78a100.i2c-bus/i2c-3/3-0060
+      physpath: /sys/devices/platform/ahb/ahb:apb/ahb:apb:bus@1e78a000/1e78a100.i2c-bus/i2c-3/3-0060
       devpath: /dev/input/by-path/platform-gpio-keys-polled-event
     - type: tach
       sensors:
@@ -31,7 +31,7 @@
   methods:
     - type: gpio
       key: 6
-      physpath: /sys/devices/platform/ahb/ahb:apb/ahb:apb:i2c@1e78a000/1e78a100.i2c-bus/i2c-3/3-0060
+      physpath: /sys/devices/platform/ahb/ahb:apb/ahb:apb:bus@1e78a000/1e78a100.i2c-bus/i2c-3/3-0060
       devpath: /dev/input/by-path/platform-gpio-keys-polled-event
     - type: tach
       sensors:
@@ -45,7 +45,7 @@
   methods:
     - type: gpio
       key: 7
-      physpath: /sys/devices/platform/ahb/ahb:apb/ahb:apb:i2c@1e78a000/1e78a100.i2c-bus/i2c-3/3-0060
+      physpath: /sys/devices/platform/ahb/ahb:apb/ahb:apb:bus@1e78a000/1e78a100.i2c-bus/i2c-3/3-0060
       devpath: /dev/input/by-path/platform-gpio-keys-polled-event
     - type: tach
       sensors: