fabtests/prov/lpp: fix compile warnings

[aingerson]

Fix compiler warnings about incorrect placement of const and inline identifiers

[aingerson]

@tstruk Fixing some compiler warnings - please take a look.
There are also a bunch of LPP provider coverity warnings. Let @j-xiong if you don't have access to view those and he can add you

[aingerson]

@tstruk Oh and there is one more compile warning about FI_MR_BASIC which I didn't fix but please address that one whenever you have a minute - thanks!

prov/lpp/src/test_util.c: In function ‘util_init’:                                               
prov/lpp/src/test_util.c:134:13: warning: 'FI_MR_BASIC' is deprecated                            
  hints.domain_attr->mr_mode = FI_MR_BASIC; 

[tstruk]

@aingerson Thanks for fixing the warnings. All the changes look good to me.
I don't have access to coverity results. @j-xiong could you please grant me access?

[tstruk]

@tstruk Oh and there is one more compile warning about FI_MR_BASIC which I didn't fix but please address that one whenever you have a minute - thanks!

prov/lpp/src/test_util.c: In function ‘util_init’:                                               
prov/lpp/src/test_util.c:134:13: warning: 'FI_MR_BASIC' is deprecated                            
  hints.domain_attr->mr_mode = FI_MR_BASIC; 

Will do

[j-xiong]

@tstruk I sent you the invitation for Coverity access.

[tstruk]

@j-xiong Got it. Thanks.