soc/amd/common: move configure_espi_with_mb_hook implementation

Move the actual implementation of configure_espi_with_mb_hook out of the
header file and into the espi_util.c file.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I1106e69a52bf329a41e8e12fd09db846310b102a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58340
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

src/soc/amd/common/block/include/amdblocks/espi.h

@@ -132,10 +132,6 @@ int espi_setup(void);
 void mb_set_up_early_espi(void);
 
 /* Setup eSPI with any mainboard specific initialization. */
-static inline void configure_espi_with_mb_hook(void)
-{
-	mb_set_up_early_espi();
-	espi_setup();
-}
+void configure_espi_with_mb_hook(void);
 
 #endif /* AMD_BLOCK_ESPI_H */

src/soc/amd/common/block/lpc/espi_util.c

@@ -1053,3 +1053,10 @@ int espi_setup(void)
 
 	return 0;
 }
+
+/* Setup eSPI with any mainboard specific initialization. */
+void configure_espi_with_mb_hook(void)
+{
+	mb_set_up_early_espi();
+	espi_setup();
+}