SundialsLapack.cmake: fix undefined print_error() call

[valgur]

CMake configuration currently fails with

CMake Error at cmake/tpl/SundialsLapack.cmake:41 (print_error):
  Unknown CMake command "print_error".
Call Stack (most recent call first):
  cmake/SundialsSetupTPLs.cmake:122 (include)
  CMakeLists.txt:186 (include)

if ENABLE_LAPACK=TRUE and SUNDIALS_PRECISION=extended.

---

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[balos1]

This is fixed by #542.