mwifiex: enable -D__CHECK_ENDIAN__ for sparse by default

Enable the endian checks by default.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/mwifiex/Makefile

@@ -53,3 +53,5 @@ obj-$(CONFIG_MWIFIEX_PCIE) += mwifiex_pcie.o
 
 mwifiex_usb-y += usb.o
 obj-$(CONFIG_MWIFIEX_USB) += mwifiex_usb.o
+
+ccflags-y += -D__CHECK_ENDIAN