b43: ensue that BCMA is "y" when B43 is "y"

When b43 gets build into the kernel and it should use bcma we have to
ensure that bcma was also build into the kernel and not as a module.
In this patch this is also done for SSB, although you can not
build b43 without ssb support for now.

This fixes a build problem reported by Randy Dunlap in
[e-mail]

Reported-By: Randy Dunlap <[e-mail]>
Cc: <[e-mail]>
Signed-off-by: Hauke Mehrtens <[e-mail]>
Signed-off-by: John W. Linville <[e-mail]>

drivers/net/wireless/b43/Kconfig

···
 
 config B43_BCMA
 	bool "Support for BCMA bus"
-	depends on B43 && BCMA
+	depends on B43 && (BCMA = y || BCMA = B43)
 	default y
 
 config B43_BCMA_EXTRA
···
 
 config B43_SSB
 	bool
-	depends on B43 && SSB
+	depends on B43 && (SSB = y || SSB = B43)
 	default y
 
 # Auto-select SSB PCI-HOST support, if possible