MAINTAINERS: Add Carl/Pranjal as QAIC reviewers

Carl and Pranjal have been reviewing the QAIC patches.  List them as
reviewers so that they are copied on all developments which will make
it easier for them to continue reviewing QAIC patches.

Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Acked-by: Carl Vanderlip <quic_carlv@quicinc.com>
Acked-by: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230523161421.11017-1-quic_jhugo@quicinc.com