or1k: unbreak foo= shell functionality, mksh can be used now

package/mksh/Makefile

@@ -14,7 +14,6 @@ PKG_URL:=		http://www.mirbsd.org/mksh.htm
 PKG_SITES:=		$(MASTER_SITE_MIRBSD:distfiles/=dist/mir/mksh/)
 
 PKG_DFLT_MKSH:=		y if !ADK_APPLIANCE_TOOLCHAIN
-PKG_ARCH_DEPENDS:=	!or1k
 
 PKG_SUBPKGS:=		MKSH MKSH_TEST
 PKGSD_MKSH_TEST:=	install testsuite

target/config/Config.in.runtime

@@ -367,7 +367,6 @@ config ADK_RUNTIME_KBD_LAYOUT
 choice
 prompt "initial login shell for the root user"
 default ADK_ROOTSH_HUSH if ADK_TARGET_WITHOUT_MMU
-default ADK_ROOTSH_ASH if ADK_TARGET_ARCH_OR1K
 default ADK_ROOTSH_MKSH
 
 config ADK_ROOTSH_MKSH
@@ -423,12 +422,11 @@ endchoice
 choice
 prompt "system /bin/sh (POSIX script shell)"
 default ADK_BINSH_HUSH if ADK_TARGET_WITHOUT_MMU
-default ADK_BINSH_ASH if ADK_TARGET_ARCH_OR1K
 default ADK_BINSH_MKSH
 
 config ADK_BINSH_MKSH
 	bool "mksh (MirBSD Korn Shell)"
-	select ADK_PACKAGE_MKSH if !ADK_APPLIANCE_TOOLCHAIN && !ADK_TARGET_ARCH_OR1K
+	select ADK_PACKAGE_MKSH if !ADK_APPLIANCE_TOOLCHAIN
 	help
 	  Use mksh (a Korn Shell variant) as system shell, which is
 	  both small and powerful, so quite suited for this task.

target/or1k/kernel/or1k-sim

@@ -5,3 +5,4 @@ CONFIG_OPENRISC_HAVE_INST_FF1=y
 CONFIG_OPENRISC_HAVE_INST_FL1=y
 CONFIG_OPENRISC_HAVE_INST_MUL=y
 CONFIG_OPENRISC_HAVE_INST_DIV=y
+CONFIG_OPENRISC_NO_SPR_SR_DSX=y