SWDEV-555299 - Fix and enable Unit_Device_modf_modff_Negative_RTC (#1012)

projects/hip-tests/catch/hipTestMain/config/config_amd_linux

@@ -86,7 +86,6 @@
         "Unit_hipLaunchCooperativeKernel_Negative_Parameters",
         "Unit_hipLaunchKernel_Negative_Parameters",
         "Unit_hipModuleLaunchCooperativeKernel_Negative_Parameters",
-        "Unit_Device_modf_modff_Negative_RTC",
         "SWDEV-446588 - Disable graph multi gpu testcases until graph has support for it",
         "=== Below tests fail in external CI for PR https://github.com/ROCm-Developer-Tools/hip-tests/pull/210 ===",
         "Unit_Assert_Positive_Basic_KernelFail",

projects/hip-tests/catch/unit/math/remainder_and_rounding_funcs.cc

@@ -150,4 +150,4 @@ TEST_CASE("Unit_Device_modf_Accuracy_Positive - double") {
       PairValidatorBuilderFactory<double>(ULPValidatorBuilderFactory<double>(0)));
 }
 
-TEST_CASE("Unit_Device_modf_modff_Negative_RTC") { NegativeTestRTCWrapper<20>(kModf); }
+TEST_CASE("Unit_Device_modf_modff_Negative_RTC") { NegativeTestRTCWrapper<19>(kModf); }