staging: vt6655: rxtx.c: Remove unnecessary space after a cast

Issue found by checkpatch.pl semantic patch results for
rxtx.c. Remove unnecessary space after the cast.

CHECK:
No necessary space is required after a cast.
Signed-off-by: Sanjana Sanikommu <sanjana99reddy99@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6655/rxtx.c

@@ -1149,7 +1149,7 @@ s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
 			/* Auto Fall Back */
 			if (bRTS) { /* RTS_need */
 				pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
-				pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
+				pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
 				pvRTS = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
 				pvCTS = NULL;
 				pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize +