organize scripts with per-version sections to avoid merge conflicts

Change-Id: I0ab22cac5189a1090c519b1d11c1952956ae43c0
diff --git a/self-extractors/generate-packages.sh b/self-extractors/generate-packages.sh
index 1ec8b08..7849ff9 100755
--- a/self-extractors/generate-packages.sh
+++ b/self-extractors/generate-packages.sh
@@ -25,8 +25,13 @@
 # 239410 = IML74K
 # 262866 = IMM30D
 # 299849 = IMM76D
-ZIP=sojus-ota-299849.zip
-BUILD=imm76d
+# end ics-mr1
+BRANCH=ics-mr1
+if test $BRANCH=ics-mr1
+then
+  ZIP=sojus-ota-299849.zip
+  BUILD=imm76d
+fi # ics-mr1
 ROOTDEVICE=crespo
 DEVICE=crespo4g
 MANUFACTURER=samsung