update new mode to post-sensor mode

[Known4225]

This PR closes #425

This changes a single line in user_config.h to refer to the timing manager's "new mode" to "post-sensor mode" instead.

[elsevers]

Thanks @Known4225.

Can you update the comment intiming_manager.c where USER_CONFIG_ISR_SOURCE is used as well?

AMDC-Firmware/sdk/app_cpu1/common/drv/timing_manager.c

Lines 172 to 183 in d348fd4

	/*
	* Specify the interrupt source of the scheduler ISR:
	*
	* Mode 0 uses the timing manager's 'trigger' signal, i.e. the control
	* frequency is based on the PWM carrier frequency and the user-specified PWM sub-ratio.
	*
	* Mode 1 uses the timing manager's 'all_done' signal, calling the scheduler
	* when all the sensors are done with acquisition. When no sensors are enabled,
	* the scheduler is called as in mode 0 (based on the trigger). This mode
	* supports reporting of the timing for each sensor
	*/
	void timing_manager_set_scheduler_source(void)

[elsevers]

Approved. Looks good.