[svn-r19471] Bug fix: 1961-- AIX 6.1 --enable-share did not work.

Description:
The AIX platform does not install the lib*.so for some reason but libhdf5.a
acts like a shared library.  Until we can find out how to fix this, patch
up tetlibinfo.sh to not look for an lib*.so in AIX. (Note the test results
look wierd as it says libhdf5.a passed and skipped.)

Tested: NCSA BP for both enable and disable-shared.

test/testlibinfo.sh.in

@@ -84,6 +84,11 @@ case `uname -s` in
         shlibsuffix=.dylib
         break
         ;;
+    AIX)	# AIX .a is already a shared lib
+	# this is a temporary patch.
+        shlibsuffix=.a
+        break
+        ;;
     *)		# default
         shlibsuffix=.so
         break