Change a few places to use DESMUME_SAMPLE_RATE instead of hard-coding 44100.


git-svn-id: https://svn.code.sf.net/p/desmume/code/trunk@5008 5577840e-afb3-4e59-9ef3-2b7f898b1952
Linux (gtk): Clear screen after reset.


git-svn-id: https://svn.code.sf.net/p/desmume/code/trunk@5009 5577840e-afb3-4e59-9ef3-2b7f898b1952