eth: fbnic: fix various typos in comments and strings

eth: fbnic: fix various typos in comments and strings

Fix several minor typos and grammatical errors in comments and log
(in fbnic firmware, PCI, and time modules)

Changes include:
 - "cordeump" -> "coredump"
 - "of" -> "off" in RPC config comment
 - "healty" -> "healthy" in firmware heartbeat comment
 - "Firmware crashed detected!" -> "Firmware crash detected!"
 - "The could be caused" -> "This could be caused"
 - "lockng" -> "locking" in fbnic_time.c

Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251013160507.768820-1-alok.a.tiwari@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>