Fix media path and app dir path

Fix media path and app dir path

Use app directory base path from tzplatform config macro. But for
TZ_USER_APP which contains rw user app path for 3rd party is unusable on
this position (for regex) because we csr server is not user service so
not usable in compile time.

- /opt/home -> /opt/usr/home
- Add sdcard prefix additionally (TZ_SYS_STORAGE)
- /home/<user>/content -> /home/<user>/media  # it's for test program

Change-Id: Icde1d8772686deb86953ae8a2272c7de3adda769
Signed-off-by: Kyungwook Tak <k.tak@samsung.com>