Change the folder layout to make it more clear

Signed-off-by: Sherry Sun <sherry.sun@nxp.com>

Makefile

@@ -178,7 +178,7 @@ endif
 
 LD += -S
 
-BINDIR = ../bin_wlan
+BINDIR = bin_wlan
 APPDIR= $(shell if test -d "mapp"; then echo mapp; fi)
 
 #############################################################################

README

@@ -1,3 +1,5 @@
+# MXM
+
 ===============================================================================
 			U S E R  M A N U A L
 
@@ -6,9 +8,9 @@
 
 1) FOR DRIVER BUILD
 
-	Goto source code directory wlan_src/.
+	Goto source code directory.
 	make [clean] build
-	The driver and utility binaries can be found in ../bin_xxxx directory.
+	The driver and utility binaries can be found in bin_wlan directory.
 	The driver code supports Linux kernel from 2.6.32 to 6.7.0.
 
 2) FOR DRIVER INSTALL