powerpc: Rename plapr routines to plpar

Back in 2013 we added some hypercall wrappers which misspelled
"plpar" (P-series Logical PARtition) as "plapr".

Visually they're hard to distinguish and it almost doesn't matter, but
it is confusing when grepping to miss some calls because of the typo.

They've also started spreading, so before they take over let's fix
them all to be "plpar".

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/platforms/pseries/setup.c

@@ -739,7 +739,7 @@ static int pseries_set_dawr(unsigned long dawr, unsigned long dawrx)
 	/* PAPR says we can't set HYP */
 	dawrx &= ~DAWRX_HYP;
 
-	return  plapr_set_watchpoint0(dawr, dawrx);
+	return  plpar_set_watchpoint0(dawr, dawrx);
 }
 
 #define CMO_CHARACTERISTICS_TOKEN 44

arch/powerpc/platforms/pseries/smp.c

@@ -215,7 +215,7 @@ static int pseries_cause_nmi_ipi(int cpu)
 		hwcpu = get_hard_smp_processor_id(cpu);
 	}
 
-	if (plapr_signal_sys_reset(hwcpu) == H_SUCCESS)
+	if (plpar_signal_sys_reset(hwcpu) == H_SUCCESS)
 		return 1;
 
 	return 0;