loader: Protect loader macro lists from clang-format

Change-Id: I3e943a538d33737453a3e71edebbd026a1c7f6f3
diff --git a/loader/phys_dev_ext.c b/loader/phys_dev_ext.c
index 9083025..27a09ef 100644
--- a/loader/phys_dev_ext.c
+++ b/loader/phys_dev_ext.c
@@ -60,6 +60,9 @@
         icd_term->phys_dev_ext[num](phys_dev_term->phys_dev);                  \
     }
 
+// Disable clang-format for lists of macros
+// clang-format off
+
 // Instantiations of the trampoline and terminator
 PhysDevExtTramp(0)   PhysDevExtTermin(0)
 PhysDevExtTramp(1)   PhysDevExtTermin(1)