Fix ppc 32 build failure as reported here:

http://kisskb.ellerman.id.au/kisskb/buildresult/11663513/

The error is as follows:

arch/powerpc/include/asm/floppy.h:142:20: error: 'isa_bridge_pcidev' undeclared
(first use in this function)

This is happening since floppy.o is enabled by BLK_DEV_FD which depends on
ARCH_MAY_HAVE_PC_FDC which is in-turn enabled if PPC_PSERIES=n. 

The following commit changes the dependency so that ARCH_MAY_HAVE_PC_FDC is
dependent exclusively on PCI since otherwise it will not compile.

Signed-off-by: Pranith Kumar <[email protected]>
Reported-by: Geert Uytterhoeven <[email protected]>
CC: Andrew Morton <[email protected]>
---
 arch/powerpc/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index a577609f..9c1aa77 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -182,7 +182,7 @@ config SCHED_OMIT_FRAME_POINTER
 
 config ARCH_MAY_HAVE_PC_FDC
        bool
-       default !PPC_PSERIES || PCI
+       default PCI
 
 config PPC_OF
        def_bool y
-- 
1.9.1

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