net: cnss_prealloc: Add memory for high latency SDIO interface

wlan driver transport layer pdev handler needs 128kb pre allocated
memory in a single block memory allocation for transmit/receive
descriptor initialization in wlan startup for the wlan module with
high latency(SDIO) based hardware interface.

CRs-Fixed: 978073
Change-Id: I0dbe047a7b64e96bf32470702d1b3e3088bffcf7
Signed-off-by: Sarada Prasanna Garnayak <sgarna@codeaurora.org>