docs/devel/loads-stores: Stop mentioning cpu_physical_memory_write_rom()

Update the documentation after commit 3c8133f973 ("Rename
cpu_physical_memory_write_rom() to address_space_write_rom()").

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20251002084203.63899-2-philmd@linaro.org>

docs/devel/loads-stores.rst

@@ -474,7 +474,7 @@ This function is intended for use by the GDB stub and similar code.
 It takes a virtual address, converts it to a physical address via
 an MMU lookup using the current settings of the specified CPU,
 and then performs the access (using ``address_space_rw`` for
-reads or ``cpu_physical_memory_write_rom`` for writes).
+reads or ``address_space_write_rom`` for writes).
 This means that if the access is a write to a ROM then this
 function will modify the contents (whereas a normal guest CPU access
 would ignore the write attempt).