hwmon: (pmbus) Move PMBus drivers to drivers/hwmon/pmbus

Since the number of PMBus drivers is getting large, move them into
directory drivers/hwmon/pmbus to improve readability and scalability.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
new file mode 100644
index 0000000..0178f81
--- /dev/null
+++ b/drivers/hwmon/pmbus/Makefile
@@ -0,0 +1,12 @@
+#
+# Makefile for PMBus chip drivers.
+#
+
+obj-$(CONFIG_PMBUS)		+= pmbus_core.o
+obj-$(CONFIG_SENSORS_PMBUS)	+= pmbus.o
+obj-$(CONFIG_SENSORS_ADM1275)	+= adm1275.o
+obj-$(CONFIG_SENSORS_MAX16064)	+= max16064.o
+obj-$(CONFIG_SENSORS_MAX34440)	+= max34440.o
+obj-$(CONFIG_SENSORS_MAX8688)	+= max8688.o
+obj-$(CONFIG_SENSORS_UCD9000)	+= ucd9000.o
+obj-$(CONFIG_SENSORS_UCD9200)	+= ucd9200.o