i2c: mxc_i2c: add DM_FLAG_PRE_RELOC flag

This adds DM_FLAG_PRE_RELOC flag to probe i2c driver
before relocation

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>

drivers/i2c/mxc_i2c.c

@@ -1049,5 +1049,6 @@ U_BOOT_DRIVER(i2c_mxc) = {
 	.probe = mxc_i2c_probe,
 	.priv_auto_alloc_size = sizeof(struct mxc_i2c_bus),
 	.ops = &mxc_i2c_ops,
+	.flags = DM_FLAG_PRE_RELOC,
 };
 #endif