soc/intel/broadwell: Don't reinitialize SPI after lockdown

With the common southbridge SPI code reinitialization after lockdown
is not necessary, hence the SMM finalize call becomes a no-op.

Change-Id: I4d7c6ba91dc9f0e0ce4e3228fdf859d5f3d5abf4
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36004
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/broadwell/finalize.c

@@ -112,12 +112,6 @@ static void broadwell_finalize(void *unused)
 	MCHBAR32(0x6008) = MCHBAR32(0x6008);
 	RCBA32(0x21a4) = RCBA32(0x21a4);
 
-	/* Re-init SPI after lockdown */
-	spi_init();
-
-	printk(BIOS_DEBUG, "Finalizing SMM.\n");
-	outb(APM_CNT_FINALIZE, APM_CNT);
-
 	/* Indicate finalize step with post code */
 	post_code(POST_OS_BOOT);
 }