Initial Minix I2C Support Merged

In the last 24 hours, my patches for adding initial I2C support to Minix were merged into mainline Minix. If you're curious about the changes, here they are:

• kernel: i2c padconf workaround
• i2c: initial bus drivers for am335x and dm37xx
• Importing usr.sbin/i2cscan
• libi2cdriver: library for i2c device drivers
• cat24c256: driver for the cat24c256 i2c eeprom
• eepromread: simple program to view eeprom contents