[Nuvoton] Enlarge required deep sleep latency

This configuration is to pass wake-up from deep-sleep test such as mbedmicro-rtos-mbed-systimer.

Author: ccli8

targets/targets.json

@@ -7441,6 +7441,7 @@
         "bootloader_supported": true,
         "overrides": {
             "network-default-interface-type": "ETHERNET",
+            "deep-sleep-latency": 1,
             "tickless-from-us-ticker": true
         }
     },
@@ -7571,6 +7572,7 @@
         "device_name": "M453VG6AE",
         "bootloader_supported": true,
         "overrides": {
+            "deep-sleep-latency": 1,
             "tickless-from-us-ticker": true
         }
     },
@@ -7638,6 +7640,7 @@
         "release_versions": ["5"],
         "device_name": "NANO130KE3BN",
         "overrides": {
+            "deep-sleep-latency": 1,
             "tickless-from-us-ticker": true
         }
     },
@@ -7999,6 +8002,7 @@
         "bootloader_supported": true,
         "overrides": {
             "network-default-interface-type": "ETHERNET",
+            "deep-sleep-latency": 1,
             "tickless-from-us-ticker": true
         }
     },
@@ -8209,6 +8213,7 @@
             }
         },
         "overrides": {
+            "deep-sleep-latency": 1,
             "mpu-rom-end": "0x1fffffff"
         },
         "inherits": ["Target"],