gdb: fix some indentation issues

gdb: fix some indentation issues

I wrote a small script to spot a pattern of indentation mistakes I saw
happened in breakpoint.c.  And while at it I ran it on all files and
fixed what I found.  No behavior changes intended, just indentation and
addition / removal of curly braces.

gdb/ChangeLog:

	* Fix some indentation mistakes throughout.

gdbserver/ChangeLog:

	* Fix some indentation mistakes throughout.

Change-Id: Ia01990c26c38e83a243d8f33da1d494f16315c6e