msm: defconfig: Disable common USB drivers with IMX on SA2150P

Disable common USB drivers between SA2150P and IMX from SA2150p
defconfig. The configs will be appended for sa2150p during
compilation by EAP bundle.

Change-Id: I525afaa886cde9d6f642c3b96e1cd9d04ce26b7e
Signed-off-by: Ajay Agarwal <ajaya@codeaurora.org>