soc/intel/alderlake: Remove pch.h from SoC directory

Remove unnecessary include of soc/pch.h from
- bootblock/pch.c
- bootblock/report_platform.c
- bootblock/uart.c

Define PCIE_CLK_XXX macro inside chip.h for mb/devicetree.cb to
consume.

Change-Id: Ic08ef586d4590462434ba2c64e21dd802ccc6800
Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50132
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/alderlake/chip.h

@@ -9,7 +9,6 @@
 #include <intelblocks/gspi.h>
 #include <intelblocks/pcie_rp.h>
 #include <soc/gpe.h>
-#include <soc/pch.h>
 #include <soc/pci_devs.h>
 #include <soc/pmc.h>
 #include <soc/serialio.h>
@@ -20,6 +19,10 @@
 #define MAX_HD_AUDIO_SNDW_LINKS 4
 #define MAX_HD_AUDIO_SSP_LINKS  6
 
+#define PCIE_CLK_NOTUSED 0xFF
+#define PCIE_CLK_LAN     0x70
+#define PCIE_CLK_FREE    0x80
+
 struct soc_intel_alderlake_config {
 
 	/* Common struct containing soc config data required by common code */