[busybox] Suppot loading $ENV when using SSH. JB#50984

Also use %autosetup instead of applying patches manually.

rpm/0001-ash-Load-ENV-file-also-if-SSH_CLIENT-SSH2_CLIENT-is-.patch

@@ -0,0 +1,32 @@
+From d192ebbee237f3a89f1fe50f092e4b43c1dd6ac5 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Bj=C3=B6rn=20Bidar?= <bjorn.bidar@jolla.com>
+Date: Thu, 3 Sep 2020 16:00:07 +0300
+Subject: [PATCH] ash: Load $ENV file also if $SSH_CLIENT/SSH2_CLIENT is preset
+ in env
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This emulates the behavior of bash loading .bashrc when $SSH_CLIENT or $SSH2_CLIENT is preset in env.
+
+Signed-off-by: Björn Bidar <bjorn.bidar@jolla.com>
+---
+ shell/ash.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/shell/ash.c b/shell/ash.c
+index ecb9b132b..797763187 100644
+--- a/shell/ash.c
++++ b/shell/ash.c
+@@ -14467,7 +14467,7 @@ int ash_main(int argc UNUSED_PARAM, char **argv)
+ #ifndef linux
+ 	 getuid() == geteuid() && getgid() == getegid() &&
+ #endif
+-	 iflag
++	 iflag || ( minusc && ( lookupvar("SSH_CLIENT") != NULL || lookupvar("SSH2_CLIENT") != NULL)) && rootshell
+ 	) {
+ 		const char *shinit = lookupvar("ENV");
+ 		if (shinit != NULL && *shinit != '\0')
+-- 
+2.28.0
+

rpm/busybox.spec

@@ -11,6 +11,7 @@ Source4: set_ps1.sh
 Patch0:  0001-Copy-extended-attributes-if-p-flag-is-provided-to-cp.patch
 Patch1:  0002-applets-Busybox-in-usr-bin-instead-of-bin.patch
 Patch2:  0003-applets-watch-in-usr-bin.patch
+Patch3:  0001-ash-Load-ENV-file-also-if-SSH_CLIENT-SSH2_CLIENT-is-.patch
 URL: https://git.sailfishos.org/mer-core/busybox
 BuildRequires: glibc-static
 BuildRequires: libselinux-static libsepol-static
@@ -181,10 +182,7 @@ Obsoletes: ncurses < 6.1+git2
 %{summary} as symlinks.
 
 %prep
-%setup -q -n %{name}-%{version}/upstream
-%patch0 -p1
-%patch1 -p1
-%patch2 -p1
+%autosetup -p1 -q -n %{name}-%{version}/upstream
 
 %build
 # TODO: This config should be synced with the dynamic config at some point