bloat-o-meter: include read-only data section in report

I'm not sure why the read-only data section is excluded from the report,
it seems as relevant as the other data sections (b and d).

I've stripped the symbols starting with __mod_ as they can have their
names dynamically generated and thus comparison between binaries is not
possible.

Signed-off-by: Jean Delvare <[e-mail]>
Cc: Andi Kleen <[e-mail]>
Acked-by: Nathan Lynch <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

scripts/bloat-o-meter

···
     sym = {}
     for l in os.popen("nm --size-sort " + file).readlines():
         size, type, name = l[:-1].split()
-        if type in "tTdDbB":
+        if type in "tTdDbBrR":
+            # strip generated symbols
+            if name[:6] == "__mod_": continue
             # function names begin with '.' on 64-bit powerpc
             if "." in name[1:]: name = "static." + name.split(".")[0]
             sym[name] = sym.get(name, 0) + int(size, 16)