ARM: shmobile: multiplatform: add AK4642 support on defconfig
ARM: shmobile: multiplatform: add AK4642 support on defconfig

AK4642 is well used audio codec on Renesas reference board

Signed-off-by: Kuninori Morimoto <a3b51ccb87d18302c1692defcfbf83319d1737eb@renesas.com>
Signed-off-by: Simon Horman <9662bddcc379be37df16f02a449c344b4718c1a1@verge.net.au>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs