misc: Replace 'struct QEMUTimer' by 'QEMUTimer'

Most code already used QEMUTimer without the redundant 'struct' keyword.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
diff --git a/target-openrisc/cpu.h b/target-openrisc/cpu.h
index 0f9efdf..51d6afd 100644
--- a/target-openrisc/cpu.h
+++ b/target-openrisc/cpu.h
@@ -307,7 +307,7 @@
 #ifndef CONFIG_USER_ONLY
     CPUOpenRISCTLBContext * tlb;
 
-    struct QEMUTimer *timer;
+    QEMUTimer *timer;
     uint32_t ttmr;          /* Timer tick mode register */
     uint32_t ttcr;          /* Timer tick count register */