[PATCH] xtensa: Added mm/Kconfig to get a flat memory layout

Added 'mm/Kconfig' to the xtensa Kconfig file to get a flat memory layout.
Fixed a typo in one of the help texts (thanks Geert for pointing it out)
Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/xtensa/Kconfig

@@ -132,7 +132,7 @@ config XTENSA_CPU_CLOCK
 config GENERIC_CALIBRATE_DELAY
 	bool "Auto calibration of the BogoMIPS value"
 	---help---
-	  The BogoMIPS value can easily derived from the CPU frequency.
+	  The BogoMIPS value can easily be derived from the CPU frequency.
 
 config CMDLINE_BOOL
 	bool "Default bootloader kernel arguments"
@@ -158,6 +158,8 @@ config XTENSA_ISS_NETWORK
 	depends on XTENSA_PLATFORM_ISS
 	default y
 
+source "mm/Kconfig"
+
 endmenu
 
 menu "Bus options"