[SCSI] make pcmcia directory use obj-y|m instead of subdir-y|m

subdir-y|m isn't supposed to contain modules or built-in components.
Change subdir-$(CONFIG_PCMCIA) to obj-$(CONFIG_PCMCIA).

Signed-off-by: Tejun Heo <htejun@gmail.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

drivers/scsi/Makefile

@@ -17,7 +17,7 @@
 CFLAGS_aha152x.o =   -DAHA152X_STAT -DAUTOCONF
 CFLAGS_gdth.o    = # -DDEBUG_GDTH=2 -D__SERIAL__ -D__COM2__ -DGDTH_STATISTICS
 
-subdir-$(CONFIG_PCMCIA)		+= pcmcia
+obj-$(CONFIG_PCMCIA)		+= pcmcia/
 
 obj-$(CONFIG_SCSI)		+= scsi_mod.o
 obj-$(CONFIG_SCSI_TGT)		+= scsi_tgt.o