Align _end symbol to at least 4 in all MIPS scripts

Left-over part of commit 84b2a020da

The _end marker must be aligned to 4-bytes to ensure that the last
element written does not reach beyond the address of _end.  This is
also necessary as the termination condition is an equality test
instead of an ordered test so (_end - _fbss) must be a multiple of
4-bytes.  The alignment is already correct for mti*.ld files, fix
it for all remaining MIPS scripts that don't already align to at
least 4.

libgloss/mips/array.ld

@@ -182,6 +182,7 @@ SECTIONS
     *(.gnu.linkonce.b.*)
     *(COMMON)
   }
+  . = ALIGN(4);
    end = .;
    _end = .;
 }

libgloss/mips/ddb-kseg0.ld

@@ -135,6 +135,7 @@ SECTIONS
     *(COMMON)
   }
 
+   . = ALIGN(4);
    end = .;
    _end = .;
 

libgloss/mips/ddb.ld

@@ -135,6 +135,7 @@ SECTIONS
     *(COMMON)
   }
 
+  . = ALIGN(4);
    end = .;
    _end = .;
 

libgloss/mips/dve.ld

@@ -137,6 +137,7 @@ SECTIONS
     *(COMMON)
   }
 
+  . = ALIGN(4);
    end = .;
    _end = .;
 

libgloss/mips/idt.ld

@@ -143,6 +143,7 @@ SECTIONS
     *(COMMON)
   }
 
+  . = ALIGN(4);
   PROVIDE (end = .);
   _end = .;
 

libgloss/mips/idt32.ld

@@ -144,6 +144,7 @@ SECTIONS
     *(COMMON)
   }
 
+  . = ALIGN(4);
    PROVIDE (end = .);
    _end = .;
 

libgloss/mips/idt64.ld

@@ -145,6 +145,7 @@ SECTIONS
     *(COMMON)
   }
 
+  . = ALIGN(4);
   PROVIDE (end = .);
   _end = .;
 

libgloss/mips/idtecoff.ld

@@ -95,6 +95,7 @@ SECTIONS
     *(.gnu.linkonce.b.*)
     *(COMMON)
   }
+  . = ALIGN(4);
    end = .;
    _end = .;
 }

libgloss/mips/jmr3904app-java.ld

@@ -99,6 +99,7 @@ SECTIONS
     . = __stack ;
   }
 
+  . = ALIGN(4);
    end = .;
    _end = .;
 

libgloss/mips/jmr3904app.ld

@@ -137,6 +137,7 @@ SECTIONS
     . = __stack ;
   }
 
+  . = ALIGN(4);
    end = .;
    _end = .;
 

libgloss/mips/jmr3904dram-java.ld

@@ -98,6 +98,7 @@ SECTIONS
     *(COMMON)
   }
 
+  . = ALIGN(4);
    end = .;
    _end = .;
 

libgloss/mips/jmr3904dram.ld

@@ -95,6 +95,7 @@ SECTIONS
     *(COMMON)
   }
 
+  . = ALIGN(4);
    end = .;
    _end = .;
 

libgloss/mips/lsi.ld

@@ -133,6 +133,7 @@ SECTIONS
     *(.gnu.linkonce.b.*)
     *(COMMON)
   }
+  . = ALIGN(4);
    end = .;
    _end = .;
 }

libgloss/mips/pmon.ld

@@ -137,6 +137,7 @@ SECTIONS
     *(COMMON)
   }
 
+  . = ALIGN(4);
    end = .;
    _end = .;
 

libgloss/mips/sde32.ld

@@ -144,6 +144,7 @@ SECTIONS
     *(COMMON)
   }
 
+  . = ALIGN(4);
   PROVIDE (end = .);
   _end = .;
 

libgloss/mips/sde64.ld

@@ -146,6 +146,7 @@ SECTIONS
     *(COMMON)
   }
 
+  . = ALIGN(4);
   PROVIDE (end = .);
   _end = .;