MAINTAINERS: Add Bill.
MAINTAINERS: Add Bill.

Signed-off-by: Philip Tricca <53a58e9d5471ed7186e9729c1e05c03a7332643a@twobit.us>

martinezjavier/tpm2-tools,martinezjavier/tpm2-tools,martinezjavier/tpm2-tools,01org/tpm2.0-tools,01org/tpm2.0-tools,martinezjavier/tpm2-tools,01org/tpm2.0-tools