src/drivers: Remove needless '&' on function pointers

Change-Id: I7a99d0dcbc8ea1362a12a68fa519c49058d30a05
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/29868
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/src/drivers/spi/acpi/acpi.c b/src/drivers/spi/acpi/acpi.c
index cf75f9e..7c8a887 100644
--- a/src/drivers/spi/acpi/acpi.c
+++ b/src/drivers/spi/acpi/acpi.c
@@ -205,8 +205,8 @@
 	.read_resources		  = DEVICE_NOOP,
 	.set_resources		  = DEVICE_NOOP,
 	.enable_resources	  = DEVICE_NOOP,
-	.acpi_name		  = &spi_acpi_name,
-	.acpi_fill_ssdt_generator = &spi_acpi_fill_ssdt_generator,
+	.acpi_name		  = spi_acpi_name,
+	.acpi_fill_ssdt_generator = spi_acpi_fill_ssdt_generator,
 };
 
 static void spi_acpi_enable(struct device *dev)
@@ -216,5 +216,5 @@
 
 struct chip_operations drivers_spi_acpi_ops = {
 	CHIP_NAME("SPI Device")
-	.enable_dev = &spi_acpi_enable
+	.enable_dev = spi_acpi_enable
 };