e_comp: additional checks for empty cdata and EXT_OBJECT type pixmap
e_comp: additional checks for empty cdata and EXT_OBJECT type pixmap

Change-Id: I5db49b50bc06579d2b2f34ecc5caf2df606ec987
Signed-off-by: MinJeong Kim <24556705797ea9c691c6aa52e5846988e670d796@samsung.com>

tizenorg/platform.upstream.enlightenment,tizenorg/platform.upstream.enlightenment,tizenorg/platform.upstream.enlightenment