Fix passing of Doubles on m68k processors that don't have FPU support.

m68k/cgcpu.pas, tcg68k:
	+ overload "a_loadfpu_ref_cgpara" and use the 64-bit code generator to pass Doubles if they are located in references

Fixes around nearly 100 tests.


git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@23597 3ad0048d-3df7-0310-abae-a5850022a9f2