MAINTAINERS: remove AMD GEODE F: arch/x86/kernel/geode_32.c

Commit c95d1e53 ("cs5535: drop the
Geode-specific MFGPT/GPIO code") removed it.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>