spi: altera: fix driver matching failure of the device ID "spi_altera"

The driver is expected to support device ID "spi_altera" for MMIO accessed
devices, device ID "subdev_spi_altera" for indirect accessed devices. But
the platform bus will not try driver name match anymore if the platform
driver has an id_table. So the "spi_altera" should also be added to
id_table.
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Link: https://lore.kernel.org/r/1592962286-25752-2-git-send-email-yilun.xu@intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-altera.c

@@ -352,6 +352,7 @@ MODULE_DEVICE_TABLE(of, altera_spi_match);
 #endif /* CONFIG_OF */
 
 static const struct platform_device_id altera_spi_ids[] = {
+	{ DRV_NAME,		ALTERA_SPI_TYPE_UNKNOWN },
 	{ "subdev_spi_altera",	ALTERA_SPI_TYPE_SUBDEV },
 	{ }
 };