build: move -rdynamic from CPPFLAGS to LDFLAGS
build: move -rdynamic from CPPFLAGS to LDFLAGS

The -rdynamic flag is a linker flag, not a compiler/preprocessor flag,
so move it to LDFLAGS.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Thomas Haller <thaller@redhat.com>

http://lists.infradead.org/pipermail/libnl/2016-March/002100.html

greearb/libnl-ct,thom311/libnl,thom311/libnl,tklauser/libnl,greearb/libnl-ct,dsahern/libnl,thom311/libnl,tklauser/libnl,HolyShitMan/libnl-1,tklauser/libnl,HolyShitMan/libnl-1,greearb/libnl-ct,HolyShitMan/libnl-1,dsahern/libnl,tklauser/libnl,HolyShitMan/libnl-1,dsahern/libnl,dsahern/libnl