Spell out full codename of Intel CPUs

For clarity spell out the full codename of Intel CPUs instead of using
an abbreviated form.

Keep the abbreviated form temporarily while applications are updated to
the new form.

Change-Id: I81b86119ce6d5b40f1037c523f8f6fddf74a383f
Signed-off-by: Jason M. Bills <jason.m.bills@intel.com>
diff --git a/peci.h b/peci.h
index 7aea0ae..68e0799 100644
--- a/peci.h
+++ b/peci.h
@@ -32,13 +32,21 @@
 
 typedef enum
 {
+    skylake = 0x00050650,
     skx = 0x00050650,
+    iceLake = 0x000606A0,
     icx = 0x000606A0,
+    iceLakeD = 0x000606C0,
     icxd = 0x000606C0,
+    sapphireRapids = 0x000806F0,
     spr = 0x000806F0,
+    emeraldRapids = 0x000C06F0,
     emr = 0x000C06F0,
+    graniteRapids = 0x000A06D0,
     gnr = 0x000A06D0,
+    graniteRapidsD = 0x000A06E0,
     gnrd = 0x000A06E0,
+    sierraForest = 0x000A06F0,
     srf = 0x000A06F0,
 } CPUModel;