tools/bc: update to 1.07

Update to latest version. Replace mirror with @GNU/bc.

Manually refresh:
- 001-no_doc.patch

Add patch found here:
26f275502d
as 002-fix-libmath.patch to fix compilation.

Add another patch found here:
55b26eda94
as 003-bc-fix-hang.patch to prevent a hang when building the kernel.

Signed-off-by: Nick Hainke <vincent@systemli.org>

tools/bc/Makefile

@@ -7,14 +7,11 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=bc
-PKG_VERSION:=1.06.95
+PKG_VERSION:=1.07
 
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
-PKG_SOURCE_URL:=https://alpha.gnu.org/gnu/bc \
-	https://gnualpha.uib.no/bc/ \
-	https://mirrors.fe.up.pt/pub/gnu-alpha/bc/ \
-	https://www.nic.funet.fi/pub/gnu/alpha/gnu/bc/
-PKG_HASH:=7ee4abbcfac03d8a6e1a8a3440558a3d239d6b858585063e745c760957725ecc
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=@GNU/bc
+PKG_HASH:=55cf1fc33a728d7c3d386cc7b0cb556eb5bacf8e0cb5a3fcca7f109fc61205ad
 
 PKG_FIXUP := autoreconf
 PKG_CPE_ID:=cpe:/a:gnu:bc