First round of lm_sensors changes for the new I2C tree

* The i2c package can no longer be compiled as part of the lm_sensors tree
* The archive of the i2c package is removed
* smbus, i2c-dev and i2c-proc modules and headers have been removed; they
  are now completely integrated into the i2c package
* The fake i2c.h header has been removed; this also allowed us to remove
  the ugly LM_SENSORS and TBD defines.
* A new variable I2C_HEADERS is introduced in the Makefile. This allows
  us to install the i2c headers in, for example, /usr/local/include/linux.
* All files now include <linux/i2c.h> instead of "i2c.h" and "smbus.h"

Status: 'make dep' works, all the right include files are found. 'make all'
         does not yet work.


git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@496 7894878c-1315-0410-8ee3-d5d059ff63e0

kernel/Module.mk

@@ -22,9 +22,7 @@ MODULE_DIR := kernel
 
 # Regrettably, even 'simply expanded variables' will not put their currently
 # defined value verbatim into the command-list of rules...
-KERNELTARGETS := $(MODULE_DIR)/smbus.o \
-                 $(MODULE_DIR)/i2c-proc.o \
-                 $(MODULE_DIR)/i2c-dev.o $(MODULE_DIR)/sensors.o
+KERNELTARGETS := $(MODULE_DIR)/sensors.o
 
 # Include all dependency files
 INCLUDEFILES += $(KERNELTARGETS:.o=.d)