RSE: Update BL1 tests binary location

Update the offset within the ROM binary that we place the RSE BL1 test
code. This is required as TF-M has modified the size of the binary to
allow for more space for BL1_1 and therefore the load address has
changed.

Change-Id: I11d5a6aa7c1c35c76686ed6af44614ee52dfe328
Signed-off-by: Jackson Cooper-Driver <jackson.cooper-driver@arm.com>
diff --git a/build_helper/build_helper_configs.py b/build_helper/build_helper_configs.py
index 0312ab2..efaf273 100755
--- a/build_helper/build_helper_configs.py
+++ b/build_helper/build_helper_configs.py
@@ -143,7 +143,7 @@
                     "arm/rse/tc/tc4": ("if [ -f \"%(ci_build_root_dir)s/spe/bin/rse_bl1_tests.bin\" ]; then "
                                    "srec_cat "
                                    "%(ci_build_root_dir)s/spe/bin/bl1_1.bin -Binary -offset 0x0 "
-                                   "%(ci_build_root_dir)s/spe/bin/rse_bl1_tests.bin -Binary -offset 0x17000 "
+                                   "%(ci_build_root_dir)s/spe/bin/rse_bl1_tests.bin -Binary -offset 0x18000 "
                                    "%(ci_build_root_dir)s/spe/bin/rom_dma_ics.bin -Binary -offset 0x1F000 "
                                    "-o %(ci_build_root_dir)s/spe/bin/rom.bin -Binary;"
                                    "else "