Re: Only give FDE encoding warnings if --eh-frame-hdr was specified.

For mips*-linux targets, fixes the following fails.
FAIL: MIPS eh-frame 1, n32
FAIL: MIPS eh-frame 1, n64
FAIL: MIPS eh-frame 2, n32
FAIL: MIPS eh-frame 2, n64

	* testsuite/ld-mips-elf/eh-frame1-n32.d: Pass --eh-frame-hdr to ld.
	* testsuite/ld-mips-elf/eh-frame1-n64.d: Likewise.
	* testsuite/ld-mips-elf/eh-frame2-n32.d: Likewise.
	* testsuite/ld-mips-elf/eh-frame2-n64.d: Likewise.

ld/ChangeLog

@@ -1,3 +1,10 @@
+2019-12-06  Alan Modra  <amodra@gmail.com>
+
+	* testsuite/ld-mips-elf/eh-frame1-n32.d: Pass --eh-frame-hdr to ld.
+	* testsuite/ld-mips-elf/eh-frame1-n64.d: Likewise.
+	* testsuite/ld-mips-elf/eh-frame2-n32.d: Likewise.
+	* testsuite/ld-mips-elf/eh-frame2-n64.d: Likewise.
+
 2019-12-05  Alan Modra  <amodra@gmail.com>
 
 	PR 25244

ld/testsuite/ld-mips-elf/eh-frame1-n32.d

@@ -3,7 +3,7 @@
 #source: eh-frame1.s
 #as: --defsym alignment=2 --defsym fill=0x40
 #readelf: --relocs -wf
-#ld: -shared -Teh-frame1.ld
+#ld: -shared --eh-frame-hdr -Teh-frame1.ld
 #warning: FDE encoding in.*prevents \.eh_frame_hdr table being created.
 
 Relocation section '\.rel\.dyn' .*:

ld/testsuite/ld-mips-elf/eh-frame1-n64.d

@@ -3,7 +3,7 @@
 #source: eh-frame1.s
 #as: --defsym alignment=3 --defsym fill=0x40
 #readelf: --relocs -wf
-#ld: -shared -Teh-frame1.ld
+#ld: -shared --eh-frame-hdr -Teh-frame1.ld
 #warning: FDE encoding in.*prevents \.eh_frame_hdr table being created.
 
 Relocation section '\.rel\.dyn' .*:

ld/testsuite/ld-mips-elf/eh-frame2-n32.d

@@ -3,7 +3,7 @@
 #source: eh-frame1.s
 #as: --defsym alignment=2 --defsym fill=0
 #readelf: --relocs -wf
-#ld: -shared -Teh-frame1.ld
+#ld: -shared --eh-frame-hdr -Teh-frame1.ld
 #warning: FDE encoding in.*prevents \.eh_frame_hdr table being created.
 
 Relocation section '\.rel\.dyn' .*:

ld/testsuite/ld-mips-elf/eh-frame2-n64.d

@@ -3,7 +3,7 @@
 #source: eh-frame1.s
 #as: --defsym alignment=3 --defsym fill=0
 #readelf: --relocs -wf
-#ld: -shared -Teh-frame1.ld
+#ld: -shared --eh-frame-hdr -Teh-frame1.ld
 #warning: FDE encoding in.*prevents \.eh_frame_hdr table being created.
 
 Relocation section '\.rel\.dyn' .*: