fix build.

Fix the following compiler error on the sdk build:

cc1plus: warnings being treated as errors
frameworks/rs/rsScript.cpp: In member function 'void android::renderscript::Script::getVar(uint32_t, const void*, size_t)':
frameworks/rs/rsScript.cpp:68: warning: format '%u' expects type 'unsigned int', but argument 5 has type 'size_t'
frameworks/rs/rsScript.cpp: In member function 'void android::renderscript::Script::setVar(uint32_t, const void*, size_t, android::renderscript::Element*, const size_t*, size_t)':
frameworks/rs/rsScript.cpp:78: warning: format '%u' expects type 'unsigned int', but argument 5 has type 'size_t'
frameworks/rs/rsScript.cpp: In member function 'void android::renderscript::Script::setVarObj(uint32_t, android::renderscript::ObjectBase*)':
frameworks/rs/rsScript.cpp:89: warning: format '%u' expects type 'unsigned int', but argument 5 has type 'size_t'
make: *** [out/host/darwin-x86/obj/STATIC_LIBRARIES/libRS_intermediates/rsScript.o] Error 1
make: *** Waiting for unfinished jobs....

Change-Id: Ibeb858c24bff95ef3960073aba108f1dc92a5ac4
diff --git a/rsScript.cpp b/rsScript.cpp
index a4a4e3b..835ded1 100644
--- a/rsScript.cpp
+++ b/rsScript.cpp
@@ -66,7 +66,7 @@
     //ALOGE("getVar %i %p %i", slot, val, len);
     if (slot >= mHal.info.exportedVariableCount) {
         ALOGE("Script::getVar unable to set allocation, invalid slot index: "
-              "%u >= %u", slot, mHal.info.exportedVariableCount);
+              "%u >= %zu", slot, mHal.info.exportedVariableCount);
         return;
     }
     mRSC->mHal.funcs.script.getGlobalVar(mRSC, this, slot, (void *)val, len);
@@ -76,7 +76,7 @@
                     const size_t *dims, size_t dimLen) {
     if (slot >= mHal.info.exportedVariableCount) {
         ALOGE("Script::setVar unable to set allocation, invalid slot index: "
-              "%u >= %u", slot, mHal.info.exportedVariableCount);
+              "%u >= %zu", slot, mHal.info.exportedVariableCount);
         return;
     }
     mRSC->mHal.funcs.script.setGlobalVarWithElemDims(mRSC, this, slot,
@@ -87,7 +87,7 @@
     //ALOGE("setVarObj %i %p", slot, val);
     if (slot >= mHal.info.exportedVariableCount) {
         ALOGE("Script::setVarObj unable to set allocation, invalid slot index: "
-              "%u >= %u", slot, mHal.info.exportedVariableCount);
+              "%u >= %zu", slot, mHal.info.exportedVariableCount);
         return;
     }
     mHasObjectSlots = true;