MAINTAINERS: add tambarus as R for Samsung SPI

I'm currently working on a Samsung SoC which includes SPI.
I'd like to be Cc'ed to further contributions and help on reviewing
them. Add me as reviewer.

Signed-off-by: Tudor Ambarus <[email protected]>
Acked-by: Andi Shyti <[email protected]>
Reviewed-by: Sam Protsenko <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: ambarus

MAINTAINERS

@@ -21075,6 +21075,7 @@ F:	include/linux/clk/samsung.h
 
 SAMSUNG SPI DRIVERS
 M:	Andi Shyti <[email protected]>
+R:	Tudor Ambarus <[email protected]>
 L:	[email protected]
 L:	[email protected]
 S:	Maintained