[sw/dif_pwrmgr] Update missing bit fields

Add one bit each to reset_info and wakeup.
Update dif_pwrmgr_unittest.cc.

Signed-off-by: Guillermo Maturana <maturana@google.com>
diff --git a/sw/device/lib/dif/dif_pwrmgr.h b/sw/device/lib/dif/dif_pwrmgr.h
index 81d7442..b292b7a 100644
--- a/sw/device/lib/dif/dif_pwrmgr.h
+++ b/sw/device/lib/dif/dif_pwrmgr.h
@@ -131,6 +131,7 @@
   kDifPwrmgrWakeupRequestSourceThree = (1u << 2),
   kDifPwrmgrWakeupRequestSourceFour = (1u << 3),
   kDifPwrmgrWakeupRequestSourceFive = (1u << 4),
+  kDifPwrmgrWakeupRequestSourceSix = (1u << 5),
 } dif_pwrmgr_wakeup_request_source_t;
 
 /**
@@ -145,6 +146,7 @@
  */
 typedef enum dif_pwrmgr_reset_request_source {
   kDifPwrmgrResetRequestSourceOne = (1u << 0),
+  kDifPwrmgrResetRequestSourceTwo = (1u << 1),
 } dif_pwrmgr_reset_request_source_t;
 
 /**