ACPI GNVS: Drop most dev_count_cpu()

Only amd/picasso and amd/stoneyridge have reference to
PCNT and that could be replaced with acpigen.

Remove the PCNT name from GNVS OperationRegion elsewhere.

Change-Id: I7dd45a840b3585fd24c31fd923b991c34ab4d783
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49272
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/soc/intel/baytrail/acpi.c

@@ -61,9 +61,6 @@ void soc_fill_gnvs(struct global_nvs *gnvs)
 	/* Set unknown wake source */
 	gnvs->pm1i = -1;
 
-	/* CPU core count */
-	gnvs->pcnt = dev_count_cpu();
-
 	/* Top of Low Memory (start of resource allocation) */
 	gnvs->tolm = nc_read_top_of_low_memory();
 }

src/soc/intel/baytrail/acpi/globalnvs.asl

@@ -30,7 +30,7 @@ Field (GNVS, ByteAcc, NoLock, Preserve)
 	P80D,	32,	/* 0x0b - Debug port (IO 0x80) value */
 	LIDS,	 8,	/* 0x0f - LID state (open = 1) */
 	PWRS,	 8,	/* 0x10 - Power State (AC = 1) */
-	PCNT,	 8,	/* 0x11 - Processor count */
+	,	 8,	/* 0x11 - Processor count */
 	TPMP,	 8,	/* 0x12 - TPM Present and Enabled */
 	TLVL,	 8,	/* 0x13 - Throttle Level */
 	PPCM,	 8,	/* 0x14 - Maximum P-state usable by OS */

src/soc/intel/baytrail/include/soc/nvs.h

@@ -21,7 +21,7 @@ struct __packed global_nvs {
 	u32	p80d; /* 0x0b - Debug port (IO 0x80) value */
 	u8	lids; /* 0x0f - LID state (open = 1) */
 	u8	pwrs; /* 0x10 - Power state (AC = 1) */
-	u8	pcnt; /* 0x11 - Processor Count */
+	u8	unused_was_pcnt; /* 0x11 - Processor Count */
 	u8	tpmp; /* 0x12 - TPM Present and Enabled */
 	u8	tlvl; /* 0x13 - Throttle Level */
 	u8	ppcm; /* 0x14 - Maximum P-state usable by OS */