powerhint: relax the cap when camera exit

Camera hints was canceled at activityStop and applied the rule for
a while after LAUNCH hint, exten the LAUNCH HINT to fix it.

Bug: 255927500
Test: build and launch/exit camera
Change-Id: I86b19467f6038a7fde0935bf79f0a0e6bc76523b

powerhint.json

@@ -645,6 +645,29 @@
       "EnableProperty": "vendor.powerhal.camerarunning",
       "Value": "CDMIDHIGHCPUSETCPUS_RESTRICTED"
     },
+    {
+      "PowerHint": "LAUNCH",
+      "Type": "DoHint",
+      "Value": "LAUNCH_EXTEND"
+    },
+    {
+      "PowerHint": "LAUNCH_EXTEND",
+      "Node": "CPUBigClusterMaxFreq",
+      "Duration": 2000,
+      "Value": "9999999"
+    },
+    {
+      "PowerHint": "LAUNCH_EXTEND",
+      "Node": "CPUMidClusterMaxFreq",
+      "Duration": 2000,
+      "Value": "9999999"
+    },
+    {
+      "PowerHint": "LAUNCH_EXTEND",
+      "Node": "CPULittleClusterMaxFreq",
+      "Duration": 2000,
+      "Value": "9999999"
+    },
     {
       "PowerHint": "CAMERA_LAUNCH",
       "Node": "MemFreq",