Rename __attribute__((packed)) --> __packed

Also unify __attribute__ ((..)) to __attribute__((..)) and
handle ((__packed__)) like ((packed))

Change-Id: Ie60a51c3fa92b5009724a5b7c2932e361bf3490c
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: https://review.coreboot.org/15921
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
diff --git a/src/drivers/intel/wifi/wifi.c b/src/drivers/intel/wifi/wifi.c
index a71f014..91c21fe 100644
--- a/src/drivers/intel/wifi/wifi.c
+++ b/src/drivers/intel/wifi/wifi.c
@@ -14,6 +14,7 @@
  * GNU General Public License for more details.
  */
 
+#include <compiler.h>
 #include <arch/acpi_device.h>
 #include <arch/acpigen.h>
 #include <console/console.h>
@@ -36,7 +37,7 @@
 		u16 handle;
 		u8 str;
 		char eos[2];
-	} __attribute__((packed));
+	} __packed;
 
 	struct smbios_type_intel_wifi *t =
 		(struct smbios_type_intel_wifi *)*current;