Documentation: devres: add missing entry for devm_platform_get_and_ioremap_resource()

The devm_platform_get_and_ioremap_resource() should be documented in
devres.rst. Add the missing entry.
Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Link: https://lore.kernel.org/r/20200527144531.9376-1-zhengdejin5@gmail.comSigned-off-by: Jonathan Corbet <corbet@lwn.net>

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

@@ -322,6 +322,7 @@ IOMAP
   devm_platform_ioremap_resource() : calls devm_ioremap_resource() for platform device
   devm_platform_ioremap_resource_wc()
   devm_platform_ioremap_resource_byname()
+  devm_platform_get_and_ioremap_resource()
   devm_iounmap()
   pcim_iomap()
   pcim_iomap_regions()	: do request_region() and iomap() on multiple BARs