[MIPS] Always pass -msoft-float.

    
Some people still haven't heared that fp in the kernel is forbidden.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/Makefile

@@ -95,6 +95,7 @@ endif
 # crossformat linking we rely on the elf2ecoff tool for format conversion.
 #
 cflags-y			+= -G 0 -mno-abicalls -fno-pic -pipe
+cflags-y			+= -msoft-float
 LDFLAGS_vmlinux			+= -G 0 -static -n -nostdlib
 MODFLAGS			+= -mlong-calls