[Bug ada/80033] style suggestions for gcc/ada/gcc-interface/Makefile.in

[nicolas.boulenguez at free dot fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80033

nicolas.boulenguez at free dot fr changed:

           What    |Removed                     |Added
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  Attachment #40961|0                           |1
        is obsolete|                            |

--- Comment #2 from nicolas.boulenguez at free dot fr ---
Created attachment 40969
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40969&action=edit
The same, split as separate diffs.

It also fix forgotten ADA_*_DIR variables and tab/space changes.