ipw2x00: move under intel vendor directory

Part of reorganising wireless drivers directory and Kconfig.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
diff --git a/drivers/net/wireless/intel/Makefile b/drivers/net/wireless/intel/Makefile
new file mode 100644
index 0000000..8e5dcb2
--- /dev/null
+++ b/drivers/net/wireless/intel/Makefile
@@ -0,0 +1,2 @@
+obj-$(CONFIG_IPW2100) += ipw2x00/
+obj-$(CONFIG_IPW2200) += ipw2x00/