powerpc: Move altivec_unavailable

Move the altivec_unavailable code, to make room at 0xf40 where the
vsx_unavailable exception will be.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/kernel/head_64.S

@@ -275,7 +275,8 @@ END_FTR_SECTION_IFSET(CPU_FTR_REAL_LE)
 	. = 0xf00
 	b	performance_monitor_pSeries
 
-	STD_EXCEPTION_PSERIES(0xf20, altivec_unavailable)
+	. = 0xf20
+	b	altivec_unavailable_pSeries
 
 #ifdef CONFIG_CBE_RAS
 	HSTD_EXCEPTION_PSERIES(0x1200, cbe_system_error)
@@ -295,6 +296,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_REAL_LE)
 
 	/* moved from 0xf00 */
 	STD_EXCEPTION_PSERIES(., performance_monitor)
+	STD_EXCEPTION_PSERIES(., altivec_unavailable)
 
 /*
  * An interrupt came in while soft-disabled; clear EE in SRR1,