sh: define entry point and reloc_dst inside a linker script

No functional change, concentrate linker script commands in one
place for convenience. Entry point is set to CONFIG_SYS_TEXT_BASE by
default on build, so this option can be omitted from being added to
the linker script.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/sh/config.mk

@@ -15,6 +15,5 @@ CONFIG_STANDALONE_LOAD_ADDR += -EB
 endif
 
 PLATFORM_CPPFLAGS += -DCONFIG_SH -D__SH__
-PLATFORM_LDFLAGS += -e $(CONFIG_SYS_TEXT_BASE) --defsym reloc_dst=$(CONFIG_SYS_TEXT_BASE)
 LDFLAGS_FINAL = --gc-sections
 PLATFORM_RELFLAGS += -ffixed-r13

arch/sh/cpu/u-boot.lds

@@ -19,10 +19,7 @@ ENTRY(_start)
 
 SECTIONS
 {
-	/*
-	 * entry and reloct_dst will be provided via ldflags
-	 */
-	. = .;
+	reloc_dst = .;
 
 	PROVIDE (_ftext = .);
 	PROVIDE (_fcode = .);
@@ -73,7 +70,6 @@ SECTIONS
 
 	PROVIDE (__init_end = .);
 	PROVIDE (reloc_dst_end = .);
-	/* _reloc_dst_end = .; */
 
 	PROVIDE (bss_start = .);
 	PROVIDE (__bss_start = .);