ANDROID: rproc: Add vendor hook when setting recovery mode

Add vendor hook when setting recovery mode to notify coprocessor when
mode is changed.
(Cherry-picked from https://android-review.googlesource.com/c/kernel/common/+/2166384

)

Bug: 205534894
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Change-Id: I27e684281319abcda119357ea0a66cfb0b47b401
Signed-off-by: Gokul krishna Krishnakumar <quic_gokukris@quicinc.com>
[quic_gurus: Fixed merge conflicts]
Signed-off-by: Guru Das Srinagesh <quic_gurus@quicinc.com>
[quic_gokukris: Fixed merge conflicts]
Signed-off-by: Gokul krishna Krishnakumar <quic_gokukris@quicinc.com>