mpr.4: Add Broadcom LSI 3808 to HARDWARE

The product brief "MegaRAID 9500 PCIe Gen 4.0 Tri-Mode Storage Adapters"
confirms that the LSI 3808 are supported in FreeBSD.

https://docs.broadcom.com/doc/MegaRAID-9500-Tri-Mode-Storage-Adapters

MFC after:		3 days
Reviewed by:		imp, ziaee
Differential Revision:	https://reviews.freebsd.org/D52760

share/man/man4/mpr.4

@@ -37,7 +37,7 @@
 .\"
 .\" $Id$
 .\"
-.Dd June 1, 2019
+.Dd September 28, 2025
 .Dt MPR 4
 .Os
 .Sh NAME
@@ -99,8 +99,12 @@ Broadcom Ltd./Avago Tech (LSI) SAS 3708 (8 Port SAS/PCIe)
 .It
 Broadcom Ltd./Avago Tech (LSI) SAS 3716 (16 Port SAS/PCIe)
 .It
+Broadcom Ltd./Avago Tech (LSI) SAS 3808 (8 Port SAS/PCIe)
+.It
 Broadcom Ltd./Avago Tech (LSI) SAS 3816 (16 Port SAS/PCIe)
 .It
+Broadcom Ltd./Avago Tech (LSI) SAS 3908 (8 Port SAS/PCIe)
+.It
 Broadcom Ltd./Avago Tech (LSI) SAS 3916 (16 Port SAS/PCIe)
 .El
 .Sh CONFIGURATION