tpm: Add wrapper function tpmhw_set_timeouts()

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
diff --git a/src/tcgbios.c b/src/tcgbios.c
index d7fe0ad..4e146bd 100644
--- a/src/tcgbios.c
+++ b/src/tcgbios.c
@@ -161,6 +161,13 @@
     return 0;
 }
 
+static void
+tpmhw_set_timeouts(u32 timeouts[4], u32 durations[3])
+{
+    struct tpm_driver *td = &tpm_drivers[TPMHW_driver_to_use];
+    td->set_timeouts(timeouts, durations);
+}
+
 
 /****************************************************************
  * ACPI TCPA table interface
@@ -383,7 +390,6 @@
     u32 returnCode;
     struct tpm_res_getcap_timeouts timeouts;
     struct tpm_res_getcap_durations durations;
-    struct tpm_driver *td = &tpm_drivers[TPMHW_driver_to_use];
     u32 i;
 
     rc = build_and_send_cmd(0, TPM_ORD_GetCapability,
@@ -427,8 +433,7 @@
             durations.durations[1],
             durations.durations[2]);
 
-
-    td->set_timeouts(timeouts.timeouts, durations.durations);
+    tpmhw_set_timeouts(timeouts.timeouts, durations.durations);
 
     return 0;