Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 68e75ce..82a52b2 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -605,7 +605,7 @@
 	copy	%r0, %r21
 
 3:		
-	/* Error occured on load or store */
+	/* Error occurred on load or store */
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
 #if ENABLE_LWS_DEBUG