scripts/bloat-o-meter: count weak symbol sizes

Currently, bloat-o-meter does not take into account weak symbols, and
thus ignores any size changes in code or data marked __weak.

Fix this by handling weak code ("w"/"W") and data ("v"/"V").

Link: https://lkml.kernel.org/r/a1e7abd2571c3bbfe75345d6ee98b276d2d5c39d.1692200010.git.geert+renesas@glider.be
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Author: geertu

scripts/bloat-o-meter

@@ -100,12 +100,12 @@ def print_result(symboltype, symbolformat):
     print("Total: Before=%d, After=%d, chg %+.2f%%" % (otot, ntot, percent))
 
 if args.c:
-    print_result("Function", "tT")
-    print_result("Data", "dDbB")
+    print_result("Function", "tTwW")
+    print_result("Data", "dDbBvV")
     print_result("RO Data", "rR")
 elif args.d:
-    print_result("Data", "dDbBrR")
+    print_result("Data", "dDbBrRvV")
 elif args.t:
-    print_result("Function", "tT")
+    print_result("Function", "tTwW")
 else:
-    print_result("Function", "tTdDbBrR")
+    print_result("Function", "tTdDbBrRvVwW")