Fix some sh4 specific entries

Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

extra/Configs/Config.in

@@ -194,6 +194,7 @@ config TARGET_SUBARCH
 	string
 	default "e500" if CONFIG_E500
 	default "classic" if CONFIG_CLASSIC
+	default "sh4" if CONFIG_SH4
 	default ""
 
 source "extra/Configs/Config.in.arch"

test/math/Makefile

@@ -10,6 +10,11 @@ include ../Test.mak
 
 DODIFF_rint     := 1
 
+# NOTE: For basic-test we must disable the floating point optimization.
+#       Only for sh architecture because in the other architecture are disabled.
+ifeq ($(TARGET_ARCH),sh)
+CFLAGS_basic-test := -mieee
+endif
 EXTRA_CFLAGS    := -DNO_LONG_DOUBLE -fno-builtin
 EXTRA_LDFLAGS   := -lm