meta-oe: Fix SRC_URI warnings to use "protocol" not "proto"

This commit updates the SRC_URI for the following recipes to use "protocol"
meta-oe/recipes-devtools/python/python-pyyaml_svn.bb
meta-oe/recipes-navigation/navit/navit_svn.bb
meta-oe/recipes-qt/qcanobserver/qcanobserver-socketcan_svn.bb
meta-oe/recipes-qt/qcanobserver/qcanobserver_svn.bb
meta-oe/recipes-support/dfu-util/dfu-util_svn.bb
meta-oe/recipes-support/portaudio/portaudio-v19_svn.bb
meta-oe/recipes-support/samsung-soc-utils/s3c24xx-gpio_svn.bb
meta-oe/recipes-support/samsung-soc-utils/s3c64xx-gpio_svn.bb
meta-oe/recipes-support/samsung-soc-utils/sjf2410-linux-native_svn.bb
meta-oe/recipes-support/usbpath/usbpath_svn.bb
meta-oe/recipes-support/wmiconfig/wmiconfig_svn.bb

Signed-off-by: Elvis Dowson <elvis.dowson@gmail.com>
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>