[MIPS] Mention Broadcom part number for BigSur board
    
Mention the Broadcom part number for the BigSur board (BCM91480B)
in Kconfig, just like it's done for other Broadcom boards.
    
Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 6356f7d..97a9769 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -602,7 +602,7 @@
 	  If you want this kernel to run on SGI O2 workstation, say Y here.
 
 config SIBYTE_BIGSUR
-	bool "Support for Sibyte BigSur"
+	bool "Support for Sibyte BCM91480B-BigSur"
 	select BOOT_ELF32
 	select DMA_COHERENT
 	select PCI_DOMAINS