scsi: docs: convert aha152x.txt to ReST

Link: https://lore.kernel.org/r/097cfcc7f25343676a1fedcefed7e3b91b41b4df.1583136624.git.mchehab+huawei@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/Documentation/scsi/index.rst b/Documentation/scsi/index.rst
index df526a0..8404e99 100644
--- a/Documentation/scsi/index.rst
+++ b/Documentation/scsi/index.rst
@@ -10,5 +10,6 @@
    53c700
    aacraid
    advansys
+   aha152x
 
    scsi_transport_srp/figures