Changed all newly made cf host presubmit to postsubmits

Test: Postsubmit results
Bug: 131720475
Change-Id: I534c895d1cfe4af1fc5adc42adc79be219ca71ad
diff --git a/TEST_MAPPING b/TEST_MAPPING
index 71249ba..0201df9 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -1,5 +1,5 @@
 {
-  "presubmit": [
+  "postsubmit": [
     {
       "name": "circqueue_test",
       "host": true
diff --git a/common/libs/auto_resources/TEST_MAPPING b/common/libs/auto_resources/TEST_MAPPING
index 1e34e75..5771ed3 100644
--- a/common/libs/auto_resources/TEST_MAPPING
+++ b/common/libs/auto_resources/TEST_MAPPING
@@ -1,5 +1,5 @@
 {
-  "presubmit": [
+  "postsubmit": [
     {
       "name": "auto_free_buffer_test",
       "host": true
diff --git a/common/libs/net/TEST_MAPPING b/common/libs/net/TEST_MAPPING
index a06d72a..d01ecf9 100644
--- a/common/libs/net/TEST_MAPPING
+++ b/common/libs/net/TEST_MAPPING
@@ -1,5 +1,5 @@
 {
-  "presubmit": [
+  "postsubmit": [
     {
       "name": "cuttlefish_net_tests",
       "host": true
diff --git a/common/libs/time/TEST_MAPPING b/common/libs/time/TEST_MAPPING
index 4c95014..af51510 100644
--- a/common/libs/time/TEST_MAPPING
+++ b/common/libs/time/TEST_MAPPING
@@ -1,5 +1,5 @@
 {
-  "presubmit": [
+  "postsubmit": [
     {
       "name": "monotonic_time_test",
       "host": true