Change reset_reason timeout.

Changed mbed_drivers-reset_reason and mbed_hal-reset_reason tests
because sometimes for some devices it was a little bit to short.

Author: Tharazi97

TESTS/mbed_drivers/reset_reason/main.cpp

@@ -137,7 +137,7 @@ void test_reset_reason()
 
 int main()
 {
-    GREENTEA_SETUP(60, "reset_reason");
+    GREENTEA_SETUP(90, "reset_reason");
     test_reset_reason(); // The result of this test suite is reported by the host side.
     GREENTEA_TESTSUITE_RESULT(0); // Fail on any error.
 }

TESTS/mbed_hal/reset_reason/main.cpp

@@ -144,7 +144,7 @@ void test_reset_reason()
 
 int main()
 {
-    GREENTEA_SETUP(60, "reset_reason");
+    GREENTEA_SETUP(90, "reset_reason");
     test_reset_reason(); // The result of this test suite is reported by the host side.
     GREENTEA_TESTSUITE_RESULT(0); // Fail on any error.
 }