spi: ep93xx: Repair SPI CS lookup tables

The actual device name of the SPI controller being registered on EP93xx is
"spi0" (as seen by gpiod_find_lookup_table()). This patch fixes all
relevant lookup tables and the following failure (seen on EDB9302):

ep93xx-spi ep93xx-spi.0: failed to register SPI master
ep93xx-spi: probe of ep93xx-spi.0 failed with error -22

Fixes: 1dfbf334 ("spi: ep93xx: Convert to use CS GPIO descriptors")
Cc: stable@vger.kernel.org
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Link: https://lore.kernel.org/r/20190831180402.10008-1-alexander.sverdlin@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>

arch/arm/mach-ep93xx/edb93xx.c

@@ -103,7 +103,7 @@ static struct spi_board_info edb93xx_spi_board_info[] __initdata = {
 };
 
 static struct gpiod_lookup_table edb93xx_spi_cs_gpio_table = {
-	.dev_id = "ep93xx-spi.0",
+	.dev_id = "spi0",
 	.table = {
 		GPIO_LOOKUP("A", 6, "cs", GPIO_ACTIVE_LOW),
 		{ },

arch/arm/mach-ep93xx/simone.c

@@ -73,7 +73,7 @@ static struct spi_board_info simone_spi_devices[] __initdata = {
  * v1.3 parts will still work, since the signal on SFRMOUT is automatic.
  */
 static struct gpiod_lookup_table simone_spi_cs_gpio_table = {
-	.dev_id = "ep93xx-spi.0",
+	.dev_id = "spi0",
 	.table = {
 		GPIO_LOOKUP("A", 1, "cs", GPIO_ACTIVE_LOW),
 		{ },

arch/arm/mach-ep93xx/ts72xx.c

@@ -267,7 +267,7 @@ static struct spi_board_info bk3_spi_board_info[] __initdata = {
  * goes through CPLD
  */
 static struct gpiod_lookup_table bk3_spi_cs_gpio_table = {
-	.dev_id = "ep93xx-spi.0",
+	.dev_id = "spi0",
 	.table = {
 		GPIO_LOOKUP("F", 3, "cs", GPIO_ACTIVE_LOW),
 		{ },
@@ -316,7 +316,7 @@ static struct spi_board_info ts72xx_spi_devices[] __initdata = {
 };
 
 static struct gpiod_lookup_table ts72xx_spi_cs_gpio_table = {
-	.dev_id = "ep93xx-spi.0",
+	.dev_id = "spi0",
 	.table = {
 		/* DIO_17 */
 		GPIO_LOOKUP("F", 2, "cs", GPIO_ACTIVE_LOW),

arch/arm/mach-ep93xx/vision_ep9307.c

@@ -242,7 +242,7 @@ static struct spi_board_info vision_spi_board_info[] __initdata = {
 };
 
 static struct gpiod_lookup_table vision_spi_cs_gpio_table = {
-	.dev_id = "ep93xx-spi.0",
+	.dev_id = "spi0",
 	.table = {
 		GPIO_LOOKUP_IDX("A", 6, "cs", 0, GPIO_ACTIVE_LOW),
 		GPIO_LOOKUP_IDX("A", 7, "cs", 1, GPIO_ACTIVE_LOW),