Increase STM32 default deep sleep latency to 4ms

LMESTM · LMESTM · commit d00130ec5e36 · 2019-10-29T14:33:09.000+01:00
Recent measurements have shown that the total wake-up latency can be more
than the 3ms initially set. It was measured as 3,7ms on DISCO_L475VG_IOT01A
target and 3,1ms on NUCLEO_L073RZ target. So set it to 4ms to be on the
safe side.
diff --git a/targets/targets.json b/targets/targets.json
@@ -1911,7 +1911,7 @@
             }
         },
         "overrides": {
-            "deep-sleep-latency": 3,
+            "deep-sleep-latency": 4,
             "init-us-ticker-at-boot": true
         },
         "device_has": [

Original file line number	Diff line number	Diff line change
`@@ -1911,7 +1911,7 @@`
`1911`	`1911`	`}`
`1912`	`1912`	`},`
`1913`	`1913`	`"overrides": {`
`1914`		`- "deep-sleep-latency": 3,`
	`1914`	`+ "deep-sleep-latency": 4,`
`1915`	`1915`	`"init-us-ticker-at-boot": true`
`1916`	`1916`	`},`
`1917`	`1917`	`"device_has": [`