docs: driver-model: add devm_ioremap_uc

Signed-off-by: NTuowen Zhao <ztuowen@gmail.com>
Acked-by: NLuis Chamberlain <mcgrof@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Documentation/driver-api/driver-model/devres.rst

@@ -314,6 +314,7 @@ IOMAP
   devm_ioport_unmap()
   devm_ioremap()
   devm_ioremap_nocache()
+  devm_ioremap_uc()
   devm_ioremap_wc()
   devm_ioremap_resource() : checks resource, requests memory region, ioremaps
   devm_iounmap()