Revert "[lld][test][LoongArch] Remove the test for R_LARCH_CALL36 range checking"

This reverts commit 0fbc728.

In 88548df, both the .sec.foo and .tex sections used the same
section flags, hence sharing one segment, pushing the output file
size too large. This breaks on many buildbots.

Now assign section .sec.foo different flags ("awx") from .text ("ax")
so that both sections get their own segment.

Author: SixWeining

lld/test/ELF/loongarch-call36.s

@@ -40,6 +40,10 @@
 # GOTPLT-NEXT: 0x01274730 00000000 00000000 00000000 00000000
 # GOTPLT-NEXT: 0x01274740 00452301 00000000
 
+# RUN: not ld.lld %t/a.o --section-start=.text=0x20000 --section-start=.sec.foo=0x2000020000 -o /dev/null 2>&1 | \
+# RUN:   FileCheck -DFILE=%t/a.o --check-prefix=ERROR-RANGE %s
+# ERROR-RANGE: error: [[FILE]]:(.text+0x0): relocation R_LARCH_CALL36 out of range: 137438953472 is not in [-137439084544, 137438822399]; references 'foo'
+
 ## Impossible case in reality becasue all LoongArch instructions are fixed 4-bytes long.
 # RUN: not ld.lld %t/a.o --section-start=.text=0x20000 --section-start=.sec.foo=0x40001 -o /dev/null 2>&1 | \
 # RUN:   FileCheck -DFILE=%t/a.o --check-prefix=ERROR-ALIGN %s
@@ -59,7 +63,7 @@ _start:
   pcaddu18i $t0, 0
   jirl      $zero, $t0, 0
 
-.section .sec.foo,"ax"
+.section .sec.foo,"awx"
 .global foo
 foo:
   ret