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>

src/drivers/net/r8168.c

@@ -347,8 +347,8 @@ static struct device_operations r8168_ops  = {
 	.init             = r8168_init,
 	.scan_bus         = 0,
 #if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)
-	.acpi_name                = &r8168_net_acpi_name,
-	.acpi_fill_ssdt_generator = &r8168_net_fill_ssdt,
+	.acpi_name                = r8168_net_acpi_name,
+	.acpi_fill_ssdt_generator = r8168_net_fill_ssdt,
 #endif
 };