fnmadd.d_b15, fmadd.d_b15, fnmsub.d_b15, and fmsub.d_b15 have incorrect RVTEST_ISA values

[jordancarlin]

Prior to #486 these tests had RVTEST_ISA("RV32IFD_Zicsr,RV64IFD_Zicsr").

After the split this was changed to RVTEST_ISA("RV32IF_Zicsr,RV32IFD_Zicsr,RV64IF_Zicsr,RV64IFD_Zicsr,RV32EF_Zicsr,RV32EFD_Zicsr,RV64EF_Zicsr,RV64EFD_Zicsr").

The new value causes the following error because it is selected with only the F extension even though these are D instructions.
Error: unrecognized opcode 'fmadd.d f31,f30,f29,f28,dyn', extension 'd' or 'zdinx' required

[UmerShahidengr]

Thanks for pointing that out. It will be reverted to the old RVTEST_ISA string soon.

[UmerShahidengr]

Thanks for the PR @jordancarlin , it will be merged soon and this issue will be closed.

[jordancarlin]

Perfect. Thanks for the prompt action.