Add christos@ to MAINTAINERS and .github/CODEOWNERS

Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D59912

.github/CODEOWNERS

@@ -92,6 +92,7 @@
 /sys/arm64/include	@zxombie
 /sys/arm64/rockchip	@evadot
 /sys/arm64/vmm		@zxombie
+/sys/cddl/dev/kinst/	@christosmarg
 /sys/compat/linprocfs/	@dag-erling
 /sys/crypto/openssl/	@ngie-eign
 /sys/dev/drm2	@bsdimp
@@ -106,6 +107,7 @@
 /sys/dev/nvd	@bsdimp
 /sys/dev/nvme	@bsdimp
 /sys/dev/pci	@bsdimp @bsdjhb
+/sys/dev/sound/	@christosmarg
 /sys/dev/superio/	@stephane-rochoy-stormshield
 /sys/dev/veriexec/	@stephane-rochoy-stormshield
 /sys/dev/vt/	@emaste

MAINTAINERS

@@ -103,12 +103,14 @@ stand/lua		kevans	Pre-commit review requested
 stand			imp	Pre-commit review strongly requested.
 stdio			des	Pre-commit review requested
 sys/compat/linuxkpi		pre-commit review requested via #linuxkpi phabricator group.
+sys/cddl/dev/kinst	christos	Pre-commit review recommended.
 sys/contrib/dev/ice	erj	Pre-commit phabricator review requested.
 sys/netpfil/ipfilter	cy	Pre-commit review requested.
 sys/dev/e1000	#intel_networking	Pre-commit phabricator review requested.
 sys/dev/ixgbe	#intel_networking	Pre-commit phabricator review requested.
 sys/dev/ixl	#intel_networking	Pre-commit phabricator review requested.
 sys/dev/ice	#intel_networking	Pre-commit phabricator review requested.
+sys/dev/sound	christos	Pre-commit review recommended.
 sys/dev/xen	royger		Pre-commit review recommended.
 sys/dev/vt	emaste
 sys/kern/kern_switch.c	olce,#scheduler	Pre-commit review requested.