[PATCH v2] MAINTAINERS: Cover the firmware JSON schema

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

Add an entry to cover firmware.json (see commit 3a0adfc9bf:
schema that describes the different uses and properties of
virtual machine firmware).

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Kashyap Chamarthy <kchamart@redhat.com>
Cc: Daniel P. Berrange <berrange@redhat.com>
Suggested-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
Since RFC v1:
- Added Daniel & Kashyap as reviewer
- Added myself as co-maintainer with Laszlo

Based on a comment from Laszlo:
https://www.mail-archive.com/qemu-devel@nongnu.org/msg604925.html
Background info from Kashyap:
https://lists.nongnu.org/archive/html/qemu-devel/2018-03/msg01978.html
---
 MAINTAINERS | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index dec252f38b..64bcea658d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2601,6 +2601,14 @@ F: include/hw/i2c/smbus_master.h
 F: include/hw/i2c/smbus_slave.h
 F: include/hw/i2c/smbus_eeprom.h
 
+Firmware schema specifications
+M: Laszlo Ersek <lersek@redhat.com>
+M: Philippe Mathieu-Daudé <philmd@redhat.com>
+R: Daniel P. Berrange <berrange@redhat.com>
+R: Kashyap Chamarthy <kchamart@redhat.com>
+S: Maintained
+F: docs/interop/firmware.json
+
 EDK2 Firmware
 M: Laszlo Ersek <lersek@redhat.com>
 M: Philippe Mathieu-Daudé <philmd@redhat.com>
-- 
2.21.3