Update the SRC_URI as the previous is unaccessible to fix the below
warning:
WARNING: quagga-1.2.4-r0 do_fetch: Failed to fetch URL https://download.savannah.gnu.org/releases/quagga/quagga-1.2.4.tar.gz;, attemptin MIRRORS if available
Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>