scripts/bloat-o-meter: ignore changes in the size of linux_banner

linux_banner can change size due to changes in the compiler, build number,
or the user@host the system was compiled on; ignore size changes in
linux_banner entirely.
Signed-off-by: NJosh Triplett <josh@joshtriplett.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NMichal Marek <mmarek@suse.cz>

scripts/bloat-o-meter

@@ -20,6 +20,7 @@ def getsizes(file):
         if type in "tTdDbBrR":
             # strip generated symbols
             if name[:6] == "__mod_": continue
+            if name == "linux_banner": continue
             # statics and some other optimizations adds random .NUMBER
             name = re.sub(r'\.[0-9]+', '', name)
             sym[name] = sym.get(name, 0) + int(size, 16)