wifi: rtw89: efuse: move reading efuse of fw secure info to common

wifi: rtw89: efuse: move reading efuse of fw secure info to common

The secure key used by certain hardware module is programmed in efuse, so
driver should read the information from efuse before downloading firmware.

Originally only RTL8922AE can support firmware secure boot, and read efuse
during chip power on. To extend to support all chips, move the caller to
common power on flow and add separate functions to read efuse for
WiFi 6 chips.

No logic change at all.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20241030022135.11688-2-pkshih@realtek.com