Makefile (ARCH): Support sh4 as sh.

Signed-off-by: Arthur Loiret <arthur.loiret@u-psud.fr>
Signed-off-by: maximilian attems <max@stro.at>
diff --git a/Makefile b/Makefile
index b507668..136d4e8 100644
--- a/Makefile
+++ b/Makefile
@@ -24,7 +24,7 @@
 
 NOSTDINC_FLAGS := -nostdlib -nostdinc -isystem $(shell $(CC) -print-file-name=include)
 
-ARCH	          := $(shell uname -m | sed -e s/i.86/i386/ -e s/parisc64/parisc/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/)
+ARCH	          := $(shell uname -m | sed -e s/i.86/i386/ -e s/parisc64/parisc/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/ -e s/sh4/sh/)
 export KLIBCARCH  ?= $(ARCH)
 export KLIBCARCHDIR := $(shell echo $(KLIBCARCH) | sed -e s/s390x/s390/)