all: fix identation at the beggining of the line

This identation fix was done with the following command:

find . -type f -regextype posix-extended -iregex ".*(\.c|\.h|\.vhd)" | \
	xargs sed -i 's/  /\t/g'
.gitattibutes: add binary filter for dbe.vhd
embedded-sw/*: fix .gitignore and commit new files
embedded-sw: various: first attempt to test ethmac and etherbone
Merge branch 'emb-sw-devel' into ebone-hw-support

Embedded software and hardware codes synchronized in
this commit.