Update lowrisc_ip to lowRISC/opentitan@ebf4663b

Update code from upstream repository
https://github.com/lowRISC/opentitan to revision
ebf4663b42a9d81d026db5821b5c8249d54f23a7

* [prim_lfsr] Fix description in core file for FPV (Philipp Wagner)
* [prim_lfsr] Factor out into a separate core file (Philipp Wagner)

Signed-off-by: Philipp Wagner <phw@lowrisc.org>

vendor/lowrisc_ip.lock.hjson

@@ -9,6 +9,6 @@
   upstream:
   {
     url: https://github.com/lowRISC/opentitan
-    rev: 9ac4f9c8b924b79eb7d3581b29346a612f705751
+    rev: ebf4663b42a9d81d026db5821b5c8249d54f23a7
   }
 }

vendor/lowrisc_ip/prim/fpv/prim_lfsr_fpv.core

@@ -3,11 +3,11 @@ CAPI=2:
 # Licensed under the Apache License, Version 2.0, see LICENSE for details.
 # SPDX-License-Identifier: Apache-2.0
 name: "lowrisc:fpv:prim_lfsr_fpv:0.1"
-description: "ALERT_HANDLER FPV target"
+description: "LFSR primitive FPV target"
 filesets:
   files_formal:
     depend:
-      - lowrisc:prim:all
+      - lowrisc:prim:lfsr
     files:
       - tb/prim_lfsr_fpv.sv
     file_type: systemVerilogSource

vendor/lowrisc_ip/prim/prim.core

@@ -32,7 +32,6 @@ filesets:
       - rtl/prim_flop_2sync.sv
       - rtl/prim_sync_reqack.sv
       - rtl/prim_keccak.sv
-      - rtl/prim_lfsr.sv
       - rtl/prim_packer.sv
       - rtl/prim_cipher_pkg.sv
       - rtl/prim_present.sv

vendor/lowrisc_ip/prim/prim_lfsr.core

@@ -0,0 +1,19 @@
+CAPI=2:
+# Copyright lowRISC contributors.
+# Licensed under the Apache License, Version 2.0, see LICENSE for details.
+# SPDX-License-Identifier: Apache-2.0
+
+name: "lowrisc:prim:lfsr:0.1"
+description: "A Linear-Feedback Shift Register (LFSR) primitive"
+filesets:
+  files_rtl:
+    depend:
+      - lowrisc:prim:assert
+    files:
+      - rtl/prim_lfsr.sv
+    file_type: systemVerilogSource
+
+targets:
+  default:
+    filesets:
+      - files_rtl