MIPS: Use -mno-check-zero-division

I don't think that in 15 years of Linux/MIPS the zero division checking
code generated by gcc by default has ever caught anything.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 3d5626e..26947ab 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -49,6 +49,7 @@
 endif
 
 cflags-y := -ffunction-sections
+cflags-y += $(call cc-option, -mno-check-zero-division)
 
 ifdef CONFIG_32BIT
 ld-emul			= $(32bit-emul)