device: s/device_handles/device_deps/ in linker scripts

Use the "device_deps" naming scheme to emphasize we are storing device
dependencies. The fact we are using device handles to store them is an
implementation detail.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
diff --git a/scripts/build/gen_device_deps.py b/scripts/build/gen_device_deps.py
index 799b913..bbebb55 100755
--- a/scripts/build/gen_device_deps.py
+++ b/scripts/build/gen_device_deps.py
@@ -107,7 +107,7 @@
     ]
     ctype = (
         '{:s}Z_DECL_ALIGN(device_handle_t) '
-        '__attribute__((__section__(".__device_handles_pass2")))'
+        '__attribute__((__section__(".__device_deps_pass2")))'
     ).format('const ' if not dynamic_handles else '')
     return [
         # The `extern` line pretends this was first declared in some .h