powerpc: wii_defconfig: Disable BCMA support

The B43 driver only needs CONFIG_SSB to support the WLAN card found in
the Wii. Configure it accordingly, and disable BCMA bus support to save
a bit of space.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/configs/wii_defconfig

@@ -51,6 +51,7 @@ CONFIG_BLK_DEV_SD=y
 CONFIG_NETDEVICES=y
 # CONFIG_ETHERNET is not set
 CONFIG_B43=y
+CONFIG_B43_BUSES_SSB=y
 CONFIG_B43_SDIO=y
 # CONFIG_B43_PHY_LP is not set
 CONFIG_B43_DEBUG=y