ltp: mmapstress01: remove from disabled tests

The test works just fine as tested on device. So, remove it
from disabled test.

Bug: 31152868
Test: run vts-kernel -m VtsKernelLtp -t mm.mmapstress01

Change-Id: Idc65f3ff498f41d7a40d8ebea5fd962c1917b2b3
Signed-off-by: Sandeep Patil <sspatil@google.com>
diff --git a/ltp/configs/disabled_tests.py b/ltp/configs/disabled_tests.py
index 0133d27..aa36175 100644
--- a/ltp/configs/disabled_tests.py
+++ b/ltp/configs/disabled_tests.py
@@ -237,7 +237,6 @@
     'fs.inode02',
     'ipc.signal_test_01',
     'mm.data_space',
-    'mm.mmapstress01',
     'mm.mmapstress10',
     'syscalls.clock_nanosleep01',
     'syscalls.clone04',