Summary: [lldb] Fix libncurses, libpanel library link order

libpanel depends on libcurses, so when linking static libraries, libpanel
should be places prior to libcurses.

This patch resolves error like:
```
.../x86_64-centos6-linux-gnu/bin/ld:
.../lib/libpanelw.a(p_show.o):
in function `show_panel':
p_show.c:(.text+0x39): undefined reference to `_nc_panelhook_sp'
.../x86_64-centos6-linux-gnu/bin/ld:
.../lib/libpanelw.a(p_show.o):
in function `update_panels_sp':
p_update.c:(.text+0x1f): undefined reference to `_nc_panelhook_sp'
collect2: error: ld returned 1 exit status
```

Reviewed By: JDevlieghere

Differential Revision: https://reviews.llvm.org/D153844