firmware: ti_sci.h: fix all kernel-doc warnings

firmware: ti_sci.h: fix all kernel-doc warnings

Modify kernel-doc comments in ti_sci.h to eliminate all kernel-doc
warnings:

* use correct/matching struct names in kdoc comments
* use correct struct member names in kdoc comments
* add a ':' after struct member names where needed
* change a blank kdoc line to " *"
* convert 3 structs to kernel-doc comments:
  struct ti_sci_msg_rm_udmap_tx_ch_cfg_req
  struct ti_sci_msg_rm_udmap_rx_ch_cfg_req
  struct ti_sci_msg_rm_udmap_flow_cfg_req

Fixes 13 kernel-doc warnings:

Warning: drivers/firmware/ti_sci.h:609 expecting prototype for struct
 tisci_msg_req_prepare_sleep. Prototype was for struct
 ti_sci_msg_req_prepare_sleep instead
Warning: drivers/firmware/ti_sci.h:609 struct member 'hdr' not described
 in 'ti_sci_msg_req_prepare_sleep'
Warning: drivers/firmware/ti_sci.h:609 struct member 'mode' not described
 in 'ti_sci_msg_req_prepare_sleep'
Warning: drivers/firmware/ti_sci.h:609 struct member 'ctx_lo' not described
 in 'ti_sci_msg_req_prepare_sleep'
Warning: drivers/firmware/ti_sci.h:609 struct member 'ctx_hi' not described
 in 'ti_sci_msg_req_prepare_sleep'
Warning: drivers/firmware/ti_sci.h:609 struct member 'debug_flags' not
 described in 'ti_sci_msg_req_prepare_sleep'
Warning: drivers/firmware/ti_sci.h:623 expecting prototype for struct
 tisci_msg_set_io_isolation_req. Prototype was for struct
 ti_sci_msg_req_set_io_isolation instead
Warning: drivers/firmware/ti_sci.h:696 struct member 'latency' not
 described in 'ti_sci_msg_req_lpm_set_latency_constraint'
Warning: drivers/firmware/ti_sci.h:857 bad line:
Warning: drivers/firmware/ti_sci.h:1002 This comment starts with '/**', but
 isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
 * Configures a Navigator Subsystem UDMAP transmit channel
Warning: drivers/firmware/ti_sci.h:1130 This comment starts with '/**', but
 isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
 * Configures a Navigator Subsystem UDMAP receive channel
Warning: drivers/firmware/ti_sci.h:1249 This comment starts with '/**', but
 isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
 * Configures a Navigator Subsystem UDMAP receive flow
Warning: drivers/firmware/ti_sci.h:1421 struct member 'valid_params'
 not described in 'ti_sci_msg_rm_udmap_flow_cfg_req'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/20251128055731.812460-1-rdunlap@infradead.org
Signed-off-by: Nishanth Menon <nm@ti.com>