jtag: esp_usb_jtag: remove macro __packed

In FreeBSB 13.0 the build fails due to redefined macro __packed.

	src/jtag/drivers/esp_usb_jtag.c:19:9: error: '__packed' macro
	    redefined [-Werror,-Wmacro-redefined]
	#define __packed __attribute__((packed))
	        ^
	/usr/include/sys/cdefs.h:223:9: note: previous definition is here
	#define __packed        __attribute__((__packed__))
	        ^
	1 error generated.

Drop the macro and align the code with the other files in OpenOCD
project, where the attribute is directly applied without using a
macro.

Change-Id: I89ae943e77036206d40d4d54172cd4a73e76e5c5
Signed-off-by: Antonio Borneo <[email protected]>
Reported-by: Wojciech Puchar <[email protected]>
Reviewed-on: https://review.openocd.org/c/openocd/+/7435
Tested-by: jenkins
Reviewed-by: Erhan Kurubas <[email protected]>

Author: borneoa

src/jtag/drivers/esp_usb_jtag.c

@@ -16,8 +16,6 @@
 #include "bitq.h"
 #include "libusb_helper.h"
 
-#define __packed __attribute__((packed))
-
 /*
 Holy Crap, it's protocol documentation, and it's even vendor-provided!
 
@@ -110,7 +108,7 @@ descriptor.
 struct jtag_proto_caps_hdr {
 	uint8_t proto_ver;	/* Protocol version. Expects JTAG_PROTO_CAPS_VER for now. */
 	uint8_t length;	/* of this plus any following descriptors */
-} __packed;
+} __attribute__((packed));
 
 /* start of the descriptor headers */
 #define JTAG_BUILTIN_DESCR_START_OFF            0	/* Devices with builtin usb jtag */
@@ -133,15 +131,15 @@ of caps header to assume this. If no such caps exist, assume a minimum (in) buff
 struct jtag_gen_hdr {
 	uint8_t type;
 	uint8_t length;
-} __packed;
+} __attribute__((packed));
 
 struct jtag_proto_caps_speed_apb {
 	uint8_t type;					/* Type, always JTAG_PROTO_CAPS_SPEED_APB_TYPE */
 	uint8_t length;					/* Length of this */
 	uint8_t apb_speed_10khz[2];		/* ABP bus speed, in 10KHz increments. Base speed is half this. */
 	uint8_t div_min[2];				/* minimum divisor (to base speed), inclusive */
 	uint8_t div_max[2];				/* maximum divisor (to base speed), inclusive */
-} __packed;
+} __attribute__((packed));
 
 #define JTAG_PROTO_CAPS_DATA_LEN                255
 #define JTAG_PROTO_CAPS_SPEED_APB_TYPE          1