ARM: OMAP2+: PRM: fix kernel-doc warnings

Use the correct function name in a kernel-doc comment.
Add function parameter descriptions in 2 places.
These changes prevent the following warnings:

prm_common.c:384: warning: expecting prototype for prm_clear_context_lost_flags_old(). Prototype was for prm_clear_context_loss_flags_old() instead
prm_common.c:505: warning: Function parameter or struct member 'vp_id' not described in 'omap_prm_vp_check_txdone'
prm_common.c:522: warning: Function parameter or struct member 'vp_id' not described in 'omap_prm_vp_clear_txdone'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: linux-omap@vger.kernel.org
Cc: Russell King <linux@armlinux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Cc: patches@armlinux.org.uk
Message-ID: <20240117011004.22669-11-rdunlap@infradead.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>