[MINOR] This commit adds functionality of the i2c driver

I'm not sure that it's stable version.

etc/system.conf

@@ -465,7 +465,7 @@ service fb
 		PRIVCTL		#  4
         ;
 	ipc
-                SYSTEM pm rs ds vm vfs cat24c256 tda19988
+		SYSTEM pm rs ds vm vfs cat24c256 tda19988
 	;
 };
 
@@ -563,3 +563,26 @@ service mailbox
 	;
 	ipc ALL
 };
+
+service i2c
+{
+	system
+		PRIVCTL			#  4
+		IRQCTL 			# 19
+		PADCONF			# 57
+	;
+	irq
+		# DM37XX (BeagleBoard-xM)
+		56		# I2C module 1
+		57		# I2C module 2
+		61		# I2C module 3
+		# AM335X (BeagleBone)
+		70		# I2C module 1
+		71		# I2C module 2
+		30		# I2C module 3
+		# BCM283X (RaspberryPi 2,3)
+		47
+	;
+	ipc SYSTEM rs ds vm
+	;
+};