k64f: Use kinetis_common ldscript

cpu/k64f/ldscripts/mk64fn1m0vll12.ld

-OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
-OUTPUT_ARCH(arm)
-
-MEMORY
-{
-    vectors (rx) : ORIGIN = 0x00000000, LENGTH = 0x400
-    flashsec (rx): ORIGIN = 0x00000400, LENGTH = 0x10
-    rom (rx)     : ORIGIN = 0x00000410, LENGTH = 1024K - 0x410
-    ram (rwx)    : ORIGIN = 0x1fff0198, LENGTH = 256K-0x198
-}
-
-INCLUDE kinetis.ld

cpu/k64f/ldscripts/mk64fn1m0vll12.ld

+../../kinetis_common/ldscripts/kinetis_f1024l64u192.ld
\ No newline at end of file