[clang][driver]Add quotation mark in test/fortran.f95 to avoid false positive

If a folder's name, where the test fortran.f95 is running, has cc1 the test
fails because of  CHECK-ASM-NOT: cc1.
The solution used in this patch is to add quotation mark around cc1 and cc1as
because the driver returns these flags with quotation marks ("")

Reviewed By: DavidTruby, echristo

Differential Revision: https://reviews.llvm.org/D86132