soc: qcom: watchdog_v2: Fix memory leaks when memory_dump_v2 isn't built

When the memory_dump_v2.c driver isn't built (CONFIG_MSM_MEMORY_DUMP_V2=n),
an inline version of msm_dump_data_register() will be used that does
nothing. This means that all memory allocated with the intention of going
to msm_dump_data_register() will be leaked.

Fix this by ignoring the entire code block when CONFIG_MSM_MEMORY_DUMP_V2
is disabled.

Signed-off-by: Sultanxda <sultanxda@gmail.com>
Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>