Fix compatibility of test_param_sensitivity_burst test case for sensor OV13855

Test: python tests/scene0/test_param_sensitivity_burst.py scenes=0 camera=1

Root cause: the max Again of OV13855 is 15.5, according to the test case to get the value of sens_range [100,1500],
at the same time it can get the sens_list is [100, 566, 1032, 1498],so s_res/float(s_req)= 1000/1032 = 0.96899 is less than ERROR_TOLERANCE(0.97).
To compatibke sensor OV13855, which should change the value of ERROR_TOLERANCE from 0.97 to 0.96

Solution:
change the value of ERROR_TOLERANCE from 0.97 to 0.96

Bug: 121105420
Change-Id: I51fb6147572371a0926a9f916c10289bf397c1e4
Signed-off-by: weijuncheng <weijuncheng@xiaomi.com>