MIPS: JZ4740: Add Kbuild files

Add the Kbuild files for the JZ4740 architecture and adds JZ4740 support
to the MIPS Kbuild files.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1406/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/jz4740/Kconfig b/arch/mips/jz4740/Kconfig
new file mode 100644
index 0000000..8a5e850
--- /dev/null
+++ b/arch/mips/jz4740/Kconfig
@@ -0,0 +1,8 @@
+choice
+	prompt "Machine type"
+	depends on MACH_JZ4740
+
+endchoice
+
+config HAVE_PWM
+	bool