tools: disable python during binutils build

Python support in binutils build causes problems, apparently. Disable
it; we don't really need it.

tools/Makefile

@@ -7,7 +7,7 @@ binutils  = $(tooldir)/binutils
 
 all_config = --prefix=$(prefix)
 
-z80_config = $(all_config) --target=z80-none-elf
+z80_config = $(all_config) --target=z80-none-elf --with-python=no
 
 include ../riscv-opts.mk
 export riscv_target_flags
@@ -30,7 +30,7 @@ riscv_config = $(all_config) \
 export riscv_config
 
 riscv_binutils_configargs := \
-	--disable-gold --disable-gprof --disable-sim
+	--disable-gold --disable-gprof --disable-sim --with-python=no
 export riscv_binutils_configargs
 
 # The tools don't seem to build correctly without buildin rules (sigh)