Update code comment to match behavior

If `BOARD_SYSTEM_KERNEL_MODULES_LOAD` is empty, we do not generate a
modules.load file. modules.dep is still generated for system

Test: NA
Change-Id: Ia9aaea6fd818016fabae59444474aa2ffd874117
diff --git a/core/Makefile b/core/Makefile
index f7a4ac0..572a2e2 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -692,7 +692,7 @@
 
 BOARD_KERNEL_MODULE_DIRS += top
 
-# Default to not generating modules.dep for kernel modules on system
+# Default to not generating modules.load for kernel modules on system
 # side. We should only load these modules if they are depended by vendor
 # side modules.
 ifeq ($(BOARD_SYSTEM_KERNEL_MODULES_LOAD),)