vc/amd/fsp/cezanne/FspmUpd: don't use pointers for usb_phy configuration

The size of a pointer changes between a 32 and 64 bit coreboot build. In
order to be able to use a 32 bit FSP in a 64 bit coreboot build, change
the pointer in the UPDs to a uint32_t to always have a 32 bit field in
the UPD for this.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I81f3a38344f91cecb4fe5431ed211834e5ed599c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69897
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/vendorcode/amd/fsp/cezanne/FspmUpd.h

@@ -94,7 +94,8 @@ typedef struct __packed {
 	/** Offset 0x04CF**/	uint32_t                    telemetry_vddcrsocfull_scale_current;
 	/** Offset 0x04D3**/	uint32_t                    telemetry_vddcrsocOffset;
 	/** Offset 0x04D7**/	uint8_t                     UnusedUpdSpace1;
-	/** Offset 0x04D8**/	struct usb_phy_config       *usb_phy;
+	/* usb_phy_ptr is actually struct usb_phy_config *, but that won't work for 64bit coreboot */
+	/** Offset 0x04D8**/	uint32_t                    usb_phy_ptr;
 	/** Offset 0x04DC**/	uint8_t                     edp_phy_override;
 	/** Offset 0x04DD**/	uint8_t                     edp_physel;
 	/** Offset 0x04DE**/	uint8_t                     dp_vs_pemph_level;