package/ncurses: fix builds with both shared and static libs

When both shared and static libs are enabled, we have two shell
constructs to run, but they are not properly separated, leading to build
failures like:

    ln -sf libncursesw.a /home/idnc_sk/IOLINUX/builds/micro-x86_64-corei7/
    output/host/usr/x86_64-buildroot-linux-uclibc/sysroot/usr/lib/libcurse
    s.a for lib in libncurses libmenu libpanel libform; do ln -sf ${lib}w.
    so /home/idnc_sk/IOLINUX/builds/micro-x86_64-corei7/output/host/usr/x8
    6_64-buildroot-linux-uclibc/sysroot/usr/lib/${lib}.so; done
    /bin/bash: -c: line 0: syntax error near unexpected token `do'
    /bin/bash: -c: line 0: `ln -sf libncursesw.a /home/idnc_sk/IOLINUX/bui
    lds/micro-x86_64-corei7/output/host/usr/x86_64-buildroot-linux-uclibc/
    sysroot/usr/lib/libcurses.a for lib in libncurses libmenu libpanel lib
    form; do ln -sf ${lib}w.so /home/idnc_sk/IOLINUX/builds/micro-x86_64-c
    orei7/output/host/usr/x86_64-buildroot-linux-uclibc/sysroot/usr/lib/${
    lib}.so; done'

As can be seen, there is a missing semi-colon ';' between the symlink
command and the for loop:

    ln -sf libncursesw.a [...]/libcurses.a for lib in [...]

Fix that by adding a semi-colon after each first shell constructs, to
properly separate the two. If the second one is not enabled (i.e. for a
static-only build), there is a trailing semi-colon, but that's perfectly
valid shell syntax.

Reported-by: idnc_sk on IRC
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>