Revert "powerpc/powernv: Fix endian bug in LPC bus debugfs accessors"

This reverts commit bf7588a0859580a45c63cb082825d77c13eca357.

Ben says although the code is not correct "[this] fix was completely
wrong and does more damages than it fixes things."

Acked-by: Benjamin Herrenschmidt <[e-mail]>
Signed-off-by: Michael Ellerman <[e-mail]>

arch/powerpc/platforms/powernv/opal-lpc.c

···
 {
 	struct lpc_debugfs_entry *lpc = filp->private_data;
 	u32 data, pos, len, todo;
-	__be32 bedata;
 	int rc;
 
 	if (!access_ok(VERIFY_WRITE, ubuf, count))
···
 				len = 2;
 		}
 		rc = opal_lpc_read(opal_lpc_chip_id, lpc->lpc_type, pos,
-				   &bedata, len);
+				   &data, len);
 		if (rc)
 			return -ENXIO;
-		data = be32_to_cpu(bedata);
 		switch(len) {
 		case 4:
 			rc = __put_user((u32)data, (u32 __user *)ubuf);