[gdb] Fix typos

[gdb] Fix typos

Fix a few typos.

unconditionaly -> unconditionally
gratuitiously -> gratuitously
configureable -> configurable
represention -> representation
distiguished -> distinguished
breakpointer -> breakpoint
asssignments -> assignments
architectual -> architectural
compatibity -> compatibility
adjustement -> adjustment
unexcepted -> unexpected
propogated -> propagated
consistant -> consistent
succeding -> succeeding
higlight -> highlight
detachs -> detach

Tested by rebuilding on x86_64-linux.

Approved-By: Simon Marchi <simon.marchi@efficios.com>