MAINTAINERS: Update Georgi's email address

Use my kernel.org email as main address to make things a bit easier
for me to handle.

Link: https://lore.kernel.org/r/20210104135043.31262-1-georgi.djakov@linaro.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
1 file changed