utilities_tests: Update us range for gtest

Be a bit more lenient with the acceptable range for the microsecond flavor of upm_delay (+/- 150us instead of +/- 100us). Signed-off-by: Noel Eck <noel.eck@intel.com>

Author: noel-eck

tests/unit/utilities/utilities_tests.cxx

@@ -57,8 +57,8 @@ TEST_F(utilities_unit, test_upm_delay_us)
  upm_delay_us(0);
  upm_delay_us(1000);
 
- /* +- check for 1000us +/- 100us */
- ASSERT_NEAR(upm_elapsed_us(&clock), 1000, 100);
+ /* +- check for 1000us +/- 150us */
+ ASSERT_NEAR(upm_elapsed_us(&clock), 1000, 150);
 }
 
 /* Currently no need for a custom main (use gtest's)