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>

src/soc/intel/quark/include/soc/pei_wrapper.h

@@ -31,6 +31,7 @@
 #define _PEI_WRAPPER_H_
 
 #include <types.h>
+#include <compiler.h>
 
 #define PEI_VERSION 22
 
@@ -53,7 +54,7 @@ struct pei_data {
 	/* Data from MRC that should be saved to flash */
 	void *data_to_save;
 	int data_to_save_size;
-} __attribute__((packed));
+} __packed;
 
 typedef struct pei_data PEI_DATA;
 

src/soc/intel/quark/include/soc/pm.h

@@ -18,11 +18,12 @@
 #define _SOC_PM_H_
 
 #include <stdint.h>
+#include <compiler.h>
 #include <arch/acpi.h>
 
 struct chipset_power_state {
 	uint32_t prev_sleep_state;
-} __attribute__ ((packed));
+} __packed;
 
 struct chipset_power_state *get_power_state(void);
 #if IS_ENABLED(CONFIG_PLATFORM_USES_FSP1_1)