Makefile: Set each file directly for gcc

It is be more securely to set each file by hand. Now if bad
file will be added it not be compiled at all.

Signed-off-by: Ivan Khoronzhuk <khorivan@gmail.com>
Makefile: git move driver files to drivers dir

It is more clearly to hold this files here.

Signed-off-by: Ivan Khoronzhuk <khorivan@gmail.com>
Makefile: Add compile label

Signed-off-by: Ivan Khoronzhuk <khorivan@gmail.com>
Makefile: Remove unused catalogs Release and Debug

Signed-off-by: Ivan Khoronzhuk <khorivan@gmail.com>
Makefile: Customize makefile to control each file separately

Make objects files in order to compile only needed files. Also add
header dependencies to rebuild when some header is changed.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
drivers: bc1602e: function names refactoring

Use names like in kernel.

Signed-off-by: Ivan Khoronzhuk <khorivan@gmail.com>
DSP: Place dsp module to separate catalog

Signed-off-by: Ivan Khoronzhuk <khorivan@gmail.com>