amdfwtool:cezanne: Add entry of PSP_BOOTLOADER_AB (0x73)

Change-Id: Ie3577b403c1de7f20b6d5bcf9e1a5d47450266fe
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50227
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

util/amdfwtool/amdfwtool.h

@@ -47,6 +47,7 @@ typedef enum _amd_fw_type {
 	AMD_RPMC_NVRAM = 0x54,
 	AMD_FW_DMCU_ERAM = 0x58,
 	AMD_FW_DMCU_ISR = 0x59,
+	AMD_FW_PSP_BOOTLOADER_AB = 0x73,
 	AMD_FW_IMC = 0x200,	/* Large enough to be larger than the top BHD entry type. */
 	AMD_FW_GEC,
 	AMD_FW_XHCI,