timestamp: Increase max number of timestamps

I'm increasing the max because when AGESA tracing is enabled it will use
over 120 entries. I added some padding to the number incase more probes
are added. This only affects ramstage so the extra ram shouldn't matter.

BUG=b:64549506
TEST=boot on grunt and ran cbmem -t

Change-Id: I7a3d2d09c91c9e302d139e7f65fa9c85c4594de4
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-on: https://review.coreboot.org/26234
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/src/lib/timestamp.c b/src/lib/timestamp.c
index bf49365..120934d 100644
--- a/src/lib/timestamp.c
+++ b/src/lib/timestamp.c
@@ -27,7 +27,7 @@
 #include <rules.h>
 #include <smp/node.h>
 
-#define MAX_TIMESTAMPS 84
+#define MAX_TIMESTAMPS 192
 
 /* When changing this number, adjust TIMESTAMP() size ASSERT() in memlayout.h */
 #define MAX_BSS_TIMESTAMP_CACHE 16