refactor(psa): rename all 'rss' files to 'rse'

Signed-off-by: Tamas Ban <tamas.ban@arm.com>
Change-Id: I379c471c541dda25d8ee9087fcf67e05b4204474
diff --git a/include/lib/psa/rss_crypto_defs.h b/include/lib/psa/rse_crypto_defs.h
similarity index 100%
rename from include/lib/psa/rss_crypto_defs.h
rename to include/lib/psa/rse_crypto_defs.h
diff --git a/include/lib/psa/rss_platform_api.h b/include/lib/psa/rse_platform_api.h
similarity index 100%
rename from include/lib/psa/rss_platform_api.h
rename to include/lib/psa/rse_platform_api.h
diff --git a/lib/psa/rss_platform.c b/lib/psa/rse_platform.c
similarity index 100%
rename from lib/psa/rss_platform.c
rename to lib/psa/rse_platform.c