rtcd.sh: sort functions by name

this will aid in output comparison with other generation systems

Change-Id: Ifb66321e45ab9fdd9eaeb5e0ea8b3d0632efe7ce

build/make/rtcd.sh

diff --git a/build/make/rtcd.sh b/build/make/rtcd.sh
index ed03713..93c9adc 100755
--- a/build/make/rtcd.sh
+++ b/build/make/rtcd.sh
@@ -333,6 +333,7 @@
 #
 # Main Driver
 #
+ALL_FUNCS=$(export LC_ALL=C; echo $ALL_FUNCS | tr ' ' '\n' | sort |tr '\n' ' ')
 require c
 case $arch in
   x86)