hw/mips: Add Loongson-3 boot parameter helpers

Preparing to add Loongson-3 machine support, add Loongson-3's LEFI (a
UEFI-like interface for BIOS-Kernel boot parameters) helpers first.

Co-developed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhuacai@kernel.org>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20201221110538.3186646-4-chenhuacai@kernel.org>
[PMD: Fixed typo]
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index 42fedf9..29c5e3b1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1159,6 +1159,8 @@
 R: Jiaxun Yang <jiaxun.yang@flygoat.com>
 S: Maintained
 F: hw/intc/loongson_liointc.c
+F: hw/mips/loongson3_bootp.c
+F: hw/mips/loongson3_bootp.h
 
 Boston
 M: Paul Burton <paulburton@kernel.org>