wifi: rtw89: regd: update regulatory map to R68-R51

Sync Realtek Channel Plan R68 and Realtek Regulatory R51.
Configure 6 GHz field of Realtek regd for the following countries.
	BO, DO, EG, LS, MZ, NG, OM, ZW, PK, PH, TH, KM, CG, CD,
	GE, GI, GU, LR, MH, FM, MP, PW, MF, SX, SZ, TZ, VI
Besides, add entries for the following countries.
	CU, SY, SD

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20241206055716.18598-7-pkshih@realtek.com