soc/intel: clean up dmi driver code

1. Remove dmi.h as it's migrated as gpmr.header
2. Remove unused gpmr definitions
3. For old platforms, define DMI defintions in c code
   for less code changes.

TEST=Build
Signed-off-by: Wonkyu Kim <wonkyu.kim@intel.com>
Change-Id: Ib340ff1ab7fd88b1e7b3860ffec055a75e562de7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63472
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>

src/soc/intel/elkhartlake/bootblock/pch.c

@@ -5,7 +5,6 @@
 #include <device/device.h>
 #include <device/mmio.h>
 #include <device/pci_ops.h>
-#include <intelblocks/dmi.h>
 #include <intelblocks/fast_spi.h>
 #include <intelblocks/gspi.h>
 #include <intelblocks/lpc_lib.h>
@@ -32,11 +31,6 @@
 #define PCR_PSFX_TO_SHDW_PCIEN_IOEN	0x01
 #define PCR_PSFX_T0_SHDW_PCIEN	0x1C
 
-#define PCR_DMI_ACPIBA		0x27B4
-#define PCR_DMI_ACPIBDID	0x27B8
-#define PCR_DMI_PMBASEA		0x27AC
-#define PCR_DMI_PMBASEC		0x27B0
-
 static void soc_config_pwrmbase(void)
 {
 	/*