Update PCR state with the state of the firmware keyblock flags too.

firmware/lib/tpm_lite/tlcl.c

Index: firmware/lib/tpm_lite/tlcl.c
diff --git a/firmware/lib/tpm_lite/tlcl.c b/firmware/lib/tpm_lite/tlcl.c
index 12742d8eb3fe44439cfa4fcf09a2e0aa834ce939..a3af5b5a6572c2449f53443ace45bfa7b9903472 100644
--- a/firmware/lib/tpm_lite/tlcl.c
+++ b/firmware/lib/tpm_lite/tlcl.c
@@ -291,7 +291,8 @@ uint32_t TlclSetGlobalLock(void) {
   return TlclWrite(TPM_NV_INDEX0, (uint8_t*) &x, 0);
 }
 
-uint32_t TlclExtend(int pcr_num, uint8_t* in_digest, uint8_t* out_digest) {
+uint32_t TlclExtend(int pcr_num, const uint8_t* in_digest,
+                    uint8_t* out_digest) {
   struct s_tpm_extend_cmd cmd;
   uint8_t response[kTpmResponseHeaderLength + kPcrDigestLength];
   uint32_t result;