librealsense_1.12.1.bbappend: fix SRC_URI after branch rewrite

librealsense has rebased their master branch, leading to: "Unable to
find revision 7332ecadc057552c178addd577d24a2756f8789a in branch
master even from upstream".

This is a hotfix until meta-intel-realsense gets updated.

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>

Author: pohly

meta-refkit-core/bbappends/meta-intel-realsense/recipes-support/librealsense/librealsense_1.12.1.bbappend

@@ -0,0 +1,4 @@
+# History of the git repo was rewritten so that the SRCREV is no longer on the master
+# branch...
+SRC_URI_remove_df-refkit-config = "git://github.com/IntelRealSense/librealsense.git;branch=master"
+SRC_URI_prepend_df-refkit-config = "git://github.com/IntelRealSense/librealsense.git;nobranch=1 "