staging: r8188eu: clean up camel case in odm_query_rxpwrpercentage()

Rename the variable 'AntPower' in odm_query_rxpwrpercentage() to avoid
camel case.

AntPower -> antpower

Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220911161949.11293-6-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/hal/odm_HWConfig.c

@@ -3,14 +3,14 @@
 
 #include "../include/drv_types.h"
 
-static u8 odm_query_rxpwrpercentage(s8 AntPower)
+static u8 odm_query_rxpwrpercentage(s8 antpower)
 {
-	if ((AntPower <= -100) || (AntPower >= 20))
+	if ((antpower <= -100) || (antpower >= 20))
 		return	0;
-	else if (AntPower >= 0)
+	else if (antpower >= 0)
 		return	100;
 	else
-		return 100 + AntPower;
+		return 100 + antpower;
 }
 
 static s32 odm_signal_scale_mapping(struct odm_dm_struct *dm_odm, s32 currsig)