Use QHash<K,V> instead of QMap<K,V> when K is a pointer type

Use QHash<K,V> instead of QMap<K,V> when K is a pointer type

Changes various internal usages of QMap when the key is a pointer type.
Being ordered by the pointer value itself, it makes very little sense
to use QMap<K*, V> (esp. in cases where the key is actually allocated
on the heap).

The usages have been found with the following script:

 #!/usr/bin/perl

 use strict;
 use warnings;
 use Regexp::Common;
 use File::Find;
 use feature ':5.10';

 my $container = qr/(?:QMap)/;

 sub process {
     return unless (-f and -r and /(\.c|\.cpp|\.h|\.txt)$/);
     open my $fh, "<", $_ or die "Cannot open $_: $!";
     while (my $line = <$fh>) {
         chomp $line;
         while ($line =~ /($container\s*$RE{balanced}{-parens=>"<>"})/g) {
             my $tmp = $1;
             $tmp =~ s/\s+//g;
             say "$_:$.: $line" if $tmp =~ /^$container\s*<[^,]+\*,/;
         }
     }
     close $fh;
 }

 find( { no_chdir => 1, wanted => \&process }, @ARGV );

Change-Id: Idd9819c3f4c48f98ef92831d5e8e5ac0fa42283c
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>