cnss2: Expose APIs to prevent and allow PCIe L1 state

WLAN driver can use the APIs to control if PCIe can enter L1 and
L1ss states.

Change-Id: Iad784b1ca66199ad61c471635a67542afd34480e
Signed-off-by: Yue Ma <yuem@codeaurora.org>
2 files changed