i3c: master: Move bus_init error suppression

i3c: master: Move bus_init error suppression

Prepare to fix improper Mx positive error propagation in later commits
by handling Mx error codes where the i3c_ccc_cmd command is allocated.
The CCC DISEC to broadcast address is invoked with
i3c_master_enec_disec_locked() and yields error I3C_ERROR_M2 if there
are no devices active on the bus. This is expected at the bus
initialization stage, where it is not known yet that there are no active
devices on the bus. Add bool suppress_m2 argument to
i3c_master_enec_disec_locked() and update the call site at
i3c_master_bus_init() with the exact corner case to not require
propagating positive Mx error codes. Other call site should not suppress
the error code, for example, if a driver requests to peripheral to
disable events and the transfer is not acknowledged, this is an error
and should not proceed.

Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Jorge Marques <jorge.marques@analog.com>
Link: https://patch.msgid.link/20260323-ad4062-positive-error-fix-v3-3-30bdc68004be@analog.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>