fabric: Rename fi_fdomain() to just fi_domain

The 'f' is not needed and may cause people to curse when
reading it.  It's just a domain.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>

include/rdma/fi_domain.h

@@ -162,7 +162,7 @@ struct fid_domain {
 #ifndef FABRIC_DIRECT
 
 static inline int
-fi_fdomain(struct fid_fabric *fabric, struct fi_domain_attr *attr,
+fi_domain(struct fid_fabric *fabric, struct fi_domain_attr *attr,
 	   struct fid_domain **domain, void *context)
 {
 	return fabric->ops->domain(fabric, attr, domain, context);

man/fi_domain.3

@@ -6,7 +6,7 @@ fi_domain \- Open a fabric access domain
 .br
 .B "#include <rdma/fi_domain.h>"
 .HP
-.BI "int fi_fdomain(struct fid_fabric *" fabric ", struct fi_domain_attr *" attr ", "
+.BI "int fi_domain(struct fid_fabric *" fabric ", struct fi_domain_attr *" attr ", "
 .BI "struct fid_domain **" domain ", void *" context ");"
 .HP
 .BI "int fi_close(struct fid *" domain ");"
@@ -44,7 +44,7 @@ multiple hardware components for fail-over or data striping purposes.
 A domain defines the boundary for associating different resources
 together.  Fabric resources belonging to the same domain may share
 resources.
-.SS "fi_fdomain"
+.SS "fi_domain"
 Opens a fabric access domain, also referred to as a resource domain.
 Fabric domains are identified by a name.  The properties of
 the opened domain are specified using the attr parameter.