qcacmn: Use single variable for minidump table index position

To avoid calling qdf_get_name_idx() function multiple times, only
use the variable tracking the index position of the log type in the
minidump table.

Change-Id: I978ee0fdeed0d9483da7262293103f468496e1c0
CRs-Fixed: 3185934

qdf/linux/src/i_qdf_trace.h

@@ -564,7 +564,7 @@ __qdf_minidump_remove(void *start_addr, const size_t size,
 	md_entry.phys_addr = virt_to_phys(start_addr);
 	md_entry.size = size;
 	msm_minidump_remove_region(&md_entry);
-	minidump_table[qdf_get_name_idx(name)] = NULL;
+	minidump_table[index] = NULL;
 }
 #else
 static inline void