ANDROID: softirq: Export irq_handler_entry tracepoint

Export irq_handle_entry tracepoint, so that vendor modules
can register probes for this tracepoint.

Bug: 175806230
Change-Id: Ieb276e1938ccf819a847cde37d5a25bfa00efe05
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>

kernel/softirq.c

@@ -29,6 +29,8 @@
 #define CREATE_TRACE_POINTS
 #include <trace/events/irq.h>
 
+EXPORT_TRACEPOINT_SYMBOL_GPL(irq_handler_entry);
+
 /*
    - No shared variables, all the data are CPU local.
    - If a softirq needs serialization, let it serialize itself