pkg/report: Fix linuxRipFrame regex for ppc64le

Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
diff --git a/pkg/report/linux.go b/pkg/report/linux.go
index b714d65..600527d 100644
--- a/pkg/report/linux.go
+++ b/pkg/report/linux.go
@@ -637,7 +637,7 @@
 	linuxSymbolizeRe = regexp.MustCompile(`(?:\[\<(?:[0-9a-f]+)\>\])?[ \t]+(?:[0-9]+:)?([a-zA-Z0-9_.]+)\+0x([0-9a-f]+)/0x([0-9a-f]+)`)
 	stackFrameRe     = regexp.MustCompile(`^ *(?:\[\<?(?:[0-9a-f]+)\>?\] ?){0,2}[ \t]+(?:[0-9]+:)?([a-zA-Z0-9_.]+)\+0x([0-9a-f]+)/0x([0-9a-f]+)`)
 	linuxRcuStall    = compile("INFO: rcu_(?:preempt|sched|bh) (?:self-)?detected(?: expedited)? stall")
-	linuxRipFrame    = compile(`IP: (?:(?:[0-9]+:)?(?:{{PC}} +){0,2}{{FUNC}}|[0-9]+:0x[0-9a-f]+|(?:[0-9]+:)?{{PC}} +\[< *\(null\)>\] +\(null\)|[0-9]+: +\(null\))`)
+	linuxRipFrame    = compile(`N?IP:? (?:(?:[0-9]+:)?(?:{{PC}} +){0,2}{{FUNC}}|[0-9]+:0x[0-9a-f]+|(?:[0-9]+:)?{{PC}} +\[< *\(null\)>\] +\(null\)|[0-9]+: +\(null\))`)
 )
 
 var linuxCorruptedTitles = []*regexp.Regexp{