staging: r8188eu: avoid camel case in phy_CalculateBitShift()

Rename the function phy_CalculateBitShift() and its parameter BitMask
to avoid camel case.

phy_CalculateBitShift -> phy_calculate_bit_shift
BitMask -> bitmask

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/20220806060929.11022-3-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/hal/rtl8188e_phycfg.c

@@ -23,9 +23,9 @@
 * Output:	none
 * Return:		u32		Return the shift bit bit position of the mask
 */
-static	u32 phy_CalculateBitShift(u32 BitMask)
+static u32 phy_calculate_bit_shift(u32 bitmask)
 {
-	u32 i = ffs(BitMask);
+	u32 i = ffs(bitmask);
 
 	return i ? i - 1 : 32;
 }
@@ -58,7 +58,7 @@ rtl8188e_PHY_QueryBBReg(
 	if (res)
 		return 0;
 
-	BitShift = phy_CalculateBitShift(BitMask);
+	BitShift = phy_calculate_bit_shift(BitMask);
 	ReturnValue = (OriginalValue & BitMask) >> BitShift;
 	return ReturnValue;
 }
@@ -91,7 +91,7 @@ void rtl8188e_PHY_SetBBReg(struct adapter *Adapter, u32 RegAddr, u32 BitMask, u3
 		if (res)
 			return;
 
-		BitShift = phy_CalculateBitShift(BitMask);
+		BitShift = phy_calculate_bit_shift(BitMask);
 		Data = ((OriginalValue & (~BitMask)) | (Data << BitShift));
 	}
 
@@ -263,7 +263,7 @@ u32 rtl8188e_PHY_QueryRFReg(struct adapter *Adapter, u32 RegAddr, u32 BitMask)
 
 	Original_Value = phy_RFSerialRead(Adapter, RegAddr);
 
-	BitShift =  phy_CalculateBitShift(BitMask);
+	BitShift =  phy_calculate_bit_shift(BitMask);
 	Readback_Value = (Original_Value & BitMask) >> BitShift;
 	return Readback_Value;
 }
@@ -298,7 +298,7 @@ rtl8188e_PHY_SetRFReg(
 	/*  RF data is 12 bits only */
 	if (BitMask != bRFRegOffsetMask) {
 		Original_Value = phy_RFSerialRead(Adapter, RegAddr);
-		BitShift =  phy_CalculateBitShift(BitMask);
+		BitShift =  phy_calculate_bit_shift(BitMask);
 		Data = ((Original_Value & (~BitMask)) | (Data << BitShift));
 	}