MAINTAINERS: add HG as cctrng maintainer

I work for Arm on maintaining the TrustZone CryptoCell TRNG driver.
Signed-off-by: NHadar Gat <hadar.gat@arm.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

MAINTAINERS

@@ -3894,6 +3894,15 @@ S:	Supported
 W:	https://developer.arm.com/products/system-ip/trustzone-cryptocell/cryptocell-700-family
 F:	drivers/crypto/ccree/
 
+CCTRNG ARM TRUSTZONE CRYPTOCELL TRUE RANDOM NUMBER GENERATOR (TRNG) DRIVER
+M:	Hadar Gat <hadar.gat@arm.com>
+L:	linux-crypto@vger.kernel.org
+S:	Supported
+F:	drivers/char/hw_random/cctrng.c
+F:	drivers/char/hw_random/cctrng.h
+F:	Documentation/devicetree/bindings/rng/arm-cctrng.txt
+W:	https://developer.arm.com/products/system-ip/trustzone-cryptocell/cryptocell-700-family
+
 CEC FRAMEWORK
 M:	Hans Verkuil <hverkuil-cisco@xs4all.nl>
 L:	linux-media@vger.kernel.org