[sw] Switch CI to Combined Toolchain

Signed-off-by: Sam Elliott <selliott@lowrisc.org>
diff --git a/util/get-toolchain.py b/util/get-toolchain.py
index 278ea38..dce06a2 100755
--- a/util/get-toolchain.py
+++ b/util/get-toolchain.py
@@ -27,7 +27,7 @@
 
 TARGET_DIR = '/tools/riscv'
 TOOLCHAIN_VERSION = 'latest'
-TOOLCHAIN_KIND = 'gcc-only'
+TOOLCHAIN_KIND = 'combined'
 
 FILE_PATTERNS_TO_REWRITE = [
     "riscv32-unknown-elf-*.cmake",