Remove the unnecessary dependencies and fix pc file

Remove the unnecessary dependencies and fix pc file

If it have to make the dependency with specific packages
at install time of rpm package , 'Requires' keyword should be used.

But, development packages are only used when building the packages
and they are not needed to be included in the image like rootfs.img.

In result, remove the unnecessary dependencies and fix pc file
from platform image.

Change-Id: Ic14f2ab2bbe5134bedd948618c1aeee1e6d2d0fb
Signed-off-by: wchang kim <wchang.kim@samsung.com>
[cw00.choi: Update patch title and add description]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>