samples: move misc-devices/mei example code from Documentation

Move misc-devices/mei examples to samples/mei and remove it from
Documentation Makefile. Delete misc-devices/Makefile.

Create a new Makefile to build samples/mei. It can be built from top
level directory or from mei directory:

Run make -C samples/mei or cd samples/mei; make
Acked-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>

Documentation/Makefile

 subdir-y := accounting auxdisplay blackfin \
-	laptops misc-devices pcmcia timers watchdog
+	laptops pcmcia timers watchdog

Documentation/misc-devices/Makefile

-subdir-y := mei

Documentation/misc-devices/mei/Makefile

-# List of programs to build
-hostprogs-y := mei-amt-version
-HOSTCFLAGS_mei-amt-version.o += -I$(objtree)/usr/include
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)

MAINTAINERS

@@ -6244,6 +6244,7 @@ F:	include/linux/mei_cl_bus.h
 F:	drivers/misc/mei/*
 F:	drivers/watchdog/mei_wdt.c
 F:	Documentation/misc-devices/mei/*
+F:	samples/mei/*
 
 INTEL MIC DRIVERS (mic)
 M:	Sudeep Dutt <sudeep.dutt@intel.com>

samples/mei/Makefile

+CC := $(CROSS_COMPILE)gcc
+CFLAGS := -I../../usr/include
+
+PROGS := mei-amt-version
+
+all: $(PROGS)
+
+clean:
+	rm -fr $(PROGS)