feat(stm32mp2): put back core 1 in wfi after debugger's halt

The core 1 is put in wfi for pen holding. If a debugger halts the
core, it causes the core to exit from wfi.

Let the core to jump back in wfi when the debugger resumes the
core's execution.

Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
Change-Id: I9b5607b05cdcde905dc4047af8d6f1292d53d701
1 file changed