Change path in i2c_getadapter for CFA10036

The path for finding the i2c hardware device id is now
/sys/devices/soc0/80000000.apb/80040000.apbx/
Change i2c hardware ids for CFA10036

The new hardware ids for I2C0 and I2C1 will now be reflected.
Remove deprecated file Arduino.mk
Make Code Sourcery as default toolchain

The older commit SHA: d025e3d4293d79d133436183f7728096b6e34bac
had made changes to Arduino.mk which has now been deprecated.