tools/mpc: update to 1.2.1

Update mpc to 1.2.1

http://www.multiprecision.org/mpc/
  Bug fixes:
    Fix an incompatibility problem with GMP 6.0 and before.
    Fix an intermediate overflow in asin.

Signed-off-by: Hannu Nyman <[email protected]>

tools/mpc/Makefile

@@ -7,11 +7,11 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=mpc
-PKG_VERSION:=1.2.0
+PKG_VERSION:=1.2.1
 
 PKG_SOURCE_URL:=@GNU/mpc/
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
-PKG_HASH:=e90f2d99553a9c19911abdb4305bf8217106a957e3994436428572c8dfe8fda6
+PKG_HASH:=17503d2c395dfcf106b622dc142683c1199431d095367c6aacba6eec30340459
 
 HOST_BUILD_PARALLEL:=1