MAINTAINERS: TPM DEVICE DRIVER: add missing includes

Add the missing headers to the "TPM DEVICE DRIVER" entry:

1. include/linux/tpm*.h
2. include/linux/vtpm_proxy.h

[jarkko: wrote a new commit message. The original is in the linked post
 for reference.]
Link: https://lore.kernel.org/linux-integrity/3E528EFF1AE81A17+20250311131440.1468875-1-wangyuli@uniontech.com/


Signed-off-by: WangYuli <wangyuli@uniontech.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>