test: disable test for systems without FPU

This test fails for systems without fpu.
For example m68k build for non-mmu/non-fpu systems fail.

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

test/math/Makefile.in

@@ -13,6 +13,9 @@ endif
 ifeq ($(DO_C99_MATH),)
 TESTS_DISABLED += test-float test-ifloat test-double test-idouble rint signgam ilogb
 endif
+ifeq ($(UCLIBC_HAS_FPU),)
+TESTS_DISABLED += test-fpucw
+endif
 
 DODIFF_rint     := 1
 DODIFF_signgam  := 1