libnica: Sync with git master for nc_rm_rf fix
libnica: Sync with git master for nc_rm_rf fix

Update libnica submodule to use the latest changes that resolve a bug
with nc_rm_rf not removing directories with valid symlinks in all
cases.

ikeydoherty/clr-boot-manager,ikeydoherty/clr-boot-manager,ikeydoherty/clr-boot-manager,ikeydoherty/clr-boot-manager