i2c: Handle the case where a restart is issued right after the address

One case is on read operations for 10bit I2C.
First a write is issued with the address, then a restart and a the msb of
the address is resent with this time the read flag.
Because there is no data phase, the peripheral entered the active state but
never switched to either Read or Write.

Author: ithinuel

rp2040-hal/src/i2c/peripheral.rs

@@ -241,7 +241,7 @@ impl<T: Deref<Target = RegisterBlock>, PINS> I2C<T, PINS, Peripheral> {
             State::Read if stat.rd_req().bit_is_set() => Some(Event::TransferRead),
             State::Write if !self.rx_fifo_empty() => Some(Event::TransferWrite),
 
-            State::Read | State::Write if stat.restart_det().bit_is_set() => {
+            State::Read | State::Write | State::Active if stat.restart_det().bit_is_set() => {
                 self.i2c.ic_clr_restart_det().read();
                 self.i2c.ic_clr_start_det().read();
                 self.mode.state = State::Active;