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)

arch/powerpc/kernel/cputable.c

@@ -37,6 +37,7 @@ extern void __setup_cpu_440gx(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_440grx(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_440spe(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_460ex(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_460gt(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_603(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_604(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_750(unsigned long offset, struct cpu_spec* spec);
@@ -1427,9 +1428,10 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.pvr_value		= 0x13020000,
 		.cpu_name		= "460GT",
 		.cpu_features		= CPU_FTRS_44X,
-		.cpu_user_features	= COMMON_USER_BOOKE,
+		.cpu_user_features	= COMMON_USER_BOOKE | PPC_FEATURE_HAS_FPU,
 		.icache_bsize		= 32,
 		.dcache_bsize		= 32,
+		.cpu_setup		= __setup_cpu_460gt,
 		.machine_check		= machine_check_440A,
 		.platform		= "ppc440",
 	},