wifi: rtw88: Constify some more structs and arrays

These structs and arrays are never modified, so make them const:

rtw_band_2ghz
rtw_band_5ghz
rtw_pci_tx_queue_idx_addr
rtw_pci_ops
rtw_cck_rates
rtw_ofdm_rates
rtw_ht_1s_rates
rtw_ht_2s_rates
rtw_vht_1s_rates
rtw_vht_2s_rates
rtw_rate_section
rtw_rate_size
rtw_sdio_ops
rtw_usb_ops

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/502f124e-ccf3-4c09-80a4-1e5c5304822b@gmail.com