video/fbtft: 'odroid22' is renamed to 'hktft9340'

The driver can be loaded with the command below.
  # modprobe fbtft_device name=hktft9340 busnum=1 rotate=270 speed=40000000

Change-Id: Ic039937853d14edc83b0974035657805cce3f596
Signed-off-by: Dongjin Kim <tobetter@gmail.com>

drivers/video/fbtft/fbtft_device.c

@@ -323,7 +323,7 @@ static struct fbtft_device_display displays[] = {
 			}
 		}
 	}, {
-		.name = "odroid22",
+		.name = "hktft9340",
 		.spi = &(struct spi_board_info) {
 			.modalias = "fb_ili9340",
 			.max_speed_hz = 32000000,