rtlwifi: rtl_pci: fix bool comparison in expressions

There are certain conditional expressions in rtl_pci, where a boolean
variable is compared with true/false, in forms such as (foo == true) or
(false != bar), which does not comply with checkpatch.pl (CHECK:
BOOL_COMPARISON), according to which boolean variables should be
themselves used in the condition, rather than comparing with true/false

E.g., in drivers/net/wireless/realtek/rtlwifi/ps.c,
"if (find_p2p_ie == true)" can be replaced with "if (find_p2p_ie)"

Replace all such expressions with the bool variables appropriately

Signed-off-by: Aditya Srivastava <yashsri421@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210110121525.2407-2-yashsri421@gmail.com