configs: add board config only for panda

Signed-off-by: Heesub Shin <heesub.shin@samsung.com>
omap4panda: disable omap3/4/5 supports except omap4 panda

Signed-off-by: Heesub Shin <heesub.shin@samsung.com>
omap4panda: cleanup unused configurations

Signed-off-by: Heesub Shin <heesub.shin@samsung.com>
omap4panda: enable wireless lan support

Signed-off-by: Heesub Shin <heesub.shin@samsung.com>