powerpc: Don't export cvt_fd & _df when CONFIG_PPC_FPU is not set

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index bc9f39d..3b4dcc8 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -101,7 +101,7 @@
 EXPORT_SYMBOL(start_thread);
 EXPORT_SYMBOL(kernel_thread);
 
-#ifndef CONFIG_BOOKE
+#ifdef CONFIG_PPC_FPU
 EXPORT_SYMBOL_GPL(cvt_df);
 EXPORT_SYMBOL_GPL(cvt_fd);
 #endif