security/tpm: Use unique CBMEM names for TCPA logs

Fix regression introduced in commit f18dc5c7
"Add TCPA logging functionality":

Introduced TCPA log got overwritten in acpi.c of x86/arch, due to
CBMEM name collision. Use a different cbmem name to have two independent
TCPA logs.

Change-Id: Iac63ac26989080a401aac2273265a263a3fdec56
Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org>
Reviewed-on: https://review.coreboot.org/27726
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
diff --git a/src/arch/x86/acpi.c b/src/arch/x86/acpi.c
index 60d2879..8d7579d 100644
--- a/src/arch/x86/acpi.c
+++ b/src/arch/x86/acpi.c
@@ -260,14 +260,14 @@
 	const struct cbmem_entry *ce;
 	const u32 tcpa_default_log_len = 0x10000;
 	void *lasa;
-	ce = cbmem_entry_find(CBMEM_ID_TCPA_LOG);
+	ce = cbmem_entry_find(CBMEM_ID_TCPA_TCG_LOG);
 	if (ce) {
 		lasa = cbmem_entry_start(ce);
 		*size = cbmem_entry_size(ce);
 		printk(BIOS_DEBUG, "TCPA log found at %p\n", lasa);
 		return lasa;
 	}
-	lasa = cbmem_add(CBMEM_ID_TCPA_LOG, tcpa_default_log_len);
+	lasa = cbmem_add(CBMEM_ID_TCPA_TCG_LOG, tcpa_default_log_len);
 	if (!lasa) {
 		printk(BIOS_ERR, "TCPA log creation failed\n");
 		return NULL;