numpy: Build in -${CARCH} folder, rebase patches

mingw-w64-python-numpy/fix-finding-python2.patch

@@ -42,7 +42,7 @@
          for key in ['version_cmd', 'compiler_f77', 'linker_so', 'linker_exe']:
              executables[key].append('-mno-cygwin')
  
-@@ -235,7 +236,7 @@
+@@ -238,7 +239,7 @@
              pass
          else:
              # use -mno-cygwin flag for gfortran when Python is not Cygwin-Python
@@ -51,7 +51,7 @@
                  for key in ['version_cmd', 'compiler_f77', 'compiler_f90',
                              'compiler_fix', 'linker_so', 'linker_exe']:
                      self.executables[key].append('-mno-cygwin')
-@@ -324,13 +324,6 @@
+@@ -328,13 +328,6 @@
                      i = opt.index("gcc")
                      opt.insert(i+1, "mingwex")
                      opt.insert(i+1, "mingw32")