post_proc: fix compiler warnings

Test: build
Change-Id: Ibe023568d07d94e8110a8b9947fdbf5248b90c30
Signed-off-by: David Lin <dtwlin@google.com>
diff --git a/post_proc/equalizer.c b/post_proc/equalizer.c
index f7d6152..0663237 100644
--- a/post_proc/equalizer.c
+++ b/post_proc/equalizer.c
@@ -371,7 +371,7 @@
     equalizer_context_t *eq_ctxt = (equalizer_context_t *)context;
     int voffset = ((p->psize - 1) / sizeof(int32_t) + 1) * sizeof(int32_t);
     void *value = p->data + voffset;
-    int32_t vsize = (int32_t) p->vsize;
+    uint32_t vsize = p->vsize;
     int32_t *param_tmp = (int32_t *)p->data;
     int32_t param = *param_tmp++;
     int32_t preset;
@@ -432,8 +432,8 @@
         } else {
             if (vsize < (2 + NUM_EQ_BANDS) * sizeof(int16_t)) {
                 android_errorWriteLog(0x534e4554, "37563371");
-                ALOGE("\tERROR EQ_PARAM_PROPERTIES valueSize %d < %d",
-                                  vsize, (2 + NUM_EQ_BANDS) * sizeof(int16_t));
+                ALOGE("\tERROR EQ_PARAM_PROPERTIES valueSize %u < %u",
+                                  vsize, (unsigned int)((2 + NUM_EQ_BANDS) * sizeof(int16_t)));
                 p->status = -EINVAL;
                 break;
             }