Revert "[POWERPC] 4xx: Fix 460GT support to not enable FPU"

This reverts commit acb0142bf0.

AMCC has indicated that the PPC 460GT does have FPU support.  This
revert enables the FPU for those chips again.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

arch/powerpc/kernel/cpu_setup_44x.S

@@ -33,6 +33,7 @@ _GLOBAL(__setup_cpu_440grx)
 	mtlr	r4
 	blr
 _GLOBAL(__setup_cpu_460ex)
+_GLOBAL(__setup_cpu_460gt)
 	b	__init_fpu_44x
 _GLOBAL(__setup_cpu_440gx)
 _GLOBAL(__setup_cpu_440spe)