gdb: LoongArch: Clean up loongarch_iterate_over_regset_sections()

Define a new variable gpsize as gprsize * LOONGARCH_LINUX_NUM_GREGSET
to replace the related code in the first cb(), and also make use of
tabs and spaces in indentation to force the proper alignment of code,
then remove the empty line at the end of the function.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>

gdb/loongarch-linux-tdep.c

@@ -492,11 +492,12 @@ loongarch_iterate_over_regset_sections (struct gdbarch *gdbarch,
 					const struct regcache *regcache)
 {
   int gprsize = register_size (gdbarch, 0);
+  int gpsize = gprsize * LOONGARCH_LINUX_NUM_GREGSET;
   int fprsize = register_size (gdbarch, LOONGARCH_FIRST_FP_REGNUM);
   int fccsize = register_size (gdbarch, LOONGARCH_FIRST_FCC_REGNUM);
   int fcsrsize = register_size (gdbarch, LOONGARCH_FCSR_REGNUM);
   int fpsize = fprsize * LOONGARCH_LINUX_NUM_FPREGSET +
-    fccsize * LOONGARCH_LINUX_NUM_FCC + fcsrsize;
+	       fccsize * LOONGARCH_LINUX_NUM_FCC + fcsrsize;
   int lsxrsize = register_size (gdbarch, LOONGARCH_FIRST_LSX_REGNUM);
   int lsxsize = lsxrsize * LOONGARCH_LINUX_NUM_LSXREGSET;
   int lasxrsize = register_size (gdbarch, LOONGARCH_FIRST_LASX_REGNUM);
@@ -506,16 +507,16 @@ loongarch_iterate_over_regset_sections (struct gdbarch *gdbarch,
   int ftopsize = register_size (gdbarch, LOONGARCH_FTOP_REGNUM);
   int lbtsize = scrsize * LOONGARCH_LINUX_NUM_SCR + eflagssize + ftopsize;
 
-  cb (".reg", LOONGARCH_LINUX_NUM_GREGSET * gprsize,
-      LOONGARCH_LINUX_NUM_GREGSET * gprsize, &loongarch_gregset, nullptr, cb_data);
-  cb (".reg2", fpsize, fpsize, &loongarch_fpregset, nullptr, cb_data);
+  cb (".reg", gpsize, gpsize,
+      &loongarch_gregset, nullptr, cb_data);
+  cb (".reg2", fpsize, fpsize,
+      &loongarch_fpregset, nullptr, cb_data);
   cb (".reg-loongarch-lsx", lsxsize, lsxsize,
       &loongarch_lsxregset, nullptr, cb_data);
   cb (".reg-loongarch-lasx", lasxsize, lasxsize,
       &loongarch_lasxregset, nullptr, cb_data);
   cb (".reg-loongarch-lbt", lbtsize, lbtsize,
       &loongarch_lbtregset, nullptr, cb_data);
-
 }
 
 /* The following value is derived from __NR_rt_sigreturn in