Documentation: dpll: wrap DPLL_CMD_PIN_GET output in a code block

DPLL_CMD_PIN_GET netlink command output for mux-type pins looks ugly
with normal paragraph formatting. Format it as a code block instead.
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://lore.kernel.org/r/20230928052708.44820-3-bagasdotme@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Documentation/driver-api/dpll.rst

@@ -119,9 +119,9 @@ with.
 If a pin was registered with multiple parent pins, they behave like a
 multiple output multiplexer. In this case output of a
 ``DPLL_CMD_PIN_GET`` would contain multiple pin-parent nested
-attributes with current state related to each parent, like:
+attributes with current state related to each parent, like::
 
-'pin': [{{
+        'pin': [{{
           'clock-id': 282574471561216,
           'module-name': 'ice',
           'capabilities': 4,