gcc: bump 4.7.x series to version 4.7.4

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/gcc/4.7.3/850-xtensa-libgcc-linker-script.patch

@@ -1,29 +0,0 @@
-From a89db366b98fffc61b20074e658c7285fb302776 Mon Sep 17 00:00:00 2001
-Message-Id: <a89db366b98fffc61b20074e658c7285fb302776.1392126646.git.baruch@tkos.co.il>
-From: sterling <sterling@138bc75d-0d04-0410-961f-82ee72b054a4>
-Date: Tue, 21 Jan 2014 19:29:23 +0000
-Subject: [PATCH] 2014-01-21  Baruch Siach <barch@tkos.co.il>
-
-	* config.host (tmake_file): add t-slibgcc-libgcc for xtensa*-*-linux*.
-
-Patch status: upstream (4.7 branch commit r206898)
-
-Signed-off-by: Baruch Siach <baruch@tkos.co.il>
----
-
-diff --git a/libgcc/config.host b/libgcc/config.host
-index e18e1d25021d..a6f7c450d702 100644
---- a/libgcc/config.host
-+++ b/libgcc/config.host
-@@ -1127,7 +1127,7 @@ xtensa*-*-elf*)
- 	extra_parts="$extra_parts crti.o crtn.o"
- 	;;
- xtensa*-*-linux*)
--	tmake_file="$tmake_file xtensa/t-xtensa xtensa/t-linux"
-+	tmake_file="$tmake_file xtensa/t-xtensa xtensa/t-linux t-slibgcc-libgcc"
- 	md_unwind_header=xtensa/linux-unwind.h
- 	;;
- am33_2.0-*-linux*)
--- 
-1.8.5.3
-

package/gcc/Config.in.host

@@ -111,7 +111,7 @@ config BR2_GCC_VERSION
 	default "4.4.7"     if BR2_GCC_VERSION_4_4_X
 	default "4.5.4"     if BR2_GCC_VERSION_4_5_X
 	default "4.6.4"     if BR2_GCC_VERSION_4_6_X
-	default "4.7.3"     if BR2_GCC_VERSION_4_7_X
+	default "4.7.4"     if BR2_GCC_VERSION_4_7_X
 	default "4.8.3"     if BR2_GCC_VERSION_4_8_X
 	default "4.9.0"     if BR2_GCC_VERSION_4_9_X
 	default "arc-4.8-R3" if BR2_GCC_VERSION_4_8_ARC