greybus: endo: delete "0xXXXX" portion in sysfs "endo" directory

With the Endo "id" attribute in place, there's no need to encode
the ID of an Endo in its sysfs path.  So get rid of it.
Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/Documentation/sysfs-bus-greybus

-What:		/sys/bus/greybus/device/endo-0xXXXX
+What:		/sys/bus/greybus/device/endo
 Date:		October 2015
 KernelVersion:	4.XX
 Contact:	Greg Kroah-Hartman <greg@kroah.com>
@@ -7,7 +7,7 @@ Description:
 		replaced with the numeric value of the endo layout
 		scheme as documented in the ARA Module Developer Kit.
 
-What:		/sys/bus/greybus/device/endo-0xXXXX/id
+What:		/sys/bus/greybus/device/endo/id
 Date:		October 2015
 KernelVersion:	4.XX
 Contact:	Greg Kroah-Hartman <greg@kroah.com>
@@ -16,7 +16,7 @@ Description:
 		defined by the the Endo layout scheme, documented in
 		the ARA Module Developer Kit.
 
-What:		/sys/bus/greybus/device/endo-0xXXXX/ap_intf_id
+What:		/sys/bus/greybus/device/endo/ap_intf_id
 Date:		October 2015
 KernelVersion:	4.XX
 Contact:	Greg Kroah-Hartman <greg@kroah.com>
@@ -26,21 +26,21 @@ Description:
 		The interface positions are defined in the ARA
 		Module Developer Kit.
 
-What:		/sys/bus/greybus/device/endo-0xXXXX/svc/serial_number
+What:		/sys/bus/greybus/device/endo/svc/serial_number
 Date:		October 2015
 KernelVersion:	4.XX
 Contact:	Greg Kroah-Hartman <greg@kroah.com>
 Description:
 		The serial number of the SVC device
 
-What:		/sys/bus/greybus/device/endo-0xXXXX/svc/version
+What:		/sys/bus/greybus/device/endo/svc/version
 Date:		October 2015
 KernelVersion:	4.XX
 Contact:	Greg Kroah-Hartman <greg@kroah.com>
 Description:
 		The version number of the firmware in the SVC device.
 
-What:		/sys/bus/greybus/device/endo-0xXXXX/.../epm
+What:		/sys/bus/greybus/device/endo/../epm
 Date:		October 2015
 KernelVersion:	4.XX
 Contact:	Greg Kroah-Hartman <greg@kroah.com>
@@ -50,7 +50,7 @@ Description:
 		Writing 1 to it turns it on, writing 0 to it turns it
 		off.  Reading the value returns if it is on or off.
 
-What:		/sys/bus/greybus/device/endo-0xXXXX/.../power_control
+What:		/sys/bus/greybus/device/endo/.../power_control
 Date:		October 2015
 KernelVersion:	4.XX
 Contact:	Greg Kroah-Hartman <greg@kroah.com>
@@ -60,7 +60,7 @@ Description:
 		to the module, writing 0 to it turns power off to the
 		module.  Reading the value returns if it is on or off.
 
-What:		/sys/bus/greybus/device/endo-0xXXXX/.../present
+What:		/sys/bus/greybus/device/endo/.../present
 Date:		October 2015
 KernelVersion:	4.XX
 Contact:	Greg Kroah-Hartman <greg@kroah.com>

drivers/staging/greybus/endo.c

@@ -438,6 +438,7 @@ static int gb_endo_register(struct greybus_host_device *hd,
 	int retval;
 
 	endo->dev.parent = hd->parent;
+	endo->dev.init_name = "endo";
 	endo->dev.bus = &greybus_bus_type;
 	endo->dev.type = &greybus_endo_type;
 	endo->dev.groups = endo_groups;
@@ -450,7 +451,6 @@ static int gb_endo_register(struct greybus_host_device *hd,
 	strcpy(&endo->svc_info.serial_number[0], "042");
 	strcpy(&endo->svc_info.version[0], "0.0");
 
-	dev_set_name(&endo->dev, "endo-0x%04x", endo->id);
 	retval = device_add(&endo->dev);
 	if (retval) {
 		dev_err(hd->parent, "failed to add endo device of id 0x%04x\n",