Based on Yocto Aero's repository, the file name for the isp2401
is the same for the B0 release.
So, unify it at the driver.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
        if (skip_fwload)
                return NULL;
 
-       if (isp->media_dev.hw_revision ==
-           ((ATOMISP_HW_REVISION_ISP2401 << ATOMISP_HW_REVISION_SHIFT)
-            | ATOMISP_HW_STEPPING_B0))
-               fw_path = "shisp_2401b0_v21.bin";
-
-       if (isp->media_dev.hw_revision ==
-           ((ATOMISP_HW_REVISION_ISP2401 << ATOMISP_HW_REVISION_SHIFT)
-            | ATOMISP_HW_STEPPING_A0))
+       if ((isp->media_dev.hw_revision  >> ATOMISP_HW_REVISION_SHIFT)
+            == ATOMISP_HW_REVISION_ISP2401)
                fw_path = "shisp_2401a0_v21.bin";
 
        if (isp->media_dev.hw_revision ==