Fix m4 warnings

Quotes and backticks are sensitive characters and should never show up
in a comment. Fix comment to avoid the use of a single quote. Also fixes
a bug where certain rules were not getting included in the compiled
policy.

Fixes the following build warnings:

[  3% 3564/114975] build out/target/product/taimen/obj/ETC/sepolicy_neverallows_intermediates/plat_pub_policy.conf
m4:system/sepolicy/public/te_macros:404: Warning: excess arguments to builtin `define' ignored
[  3% 3578/114975] build out/target/product/taimen/obj/ETC/plat_sepolicy.cil_intermediates/plat_policy.conf
m4:system/sepolicy/public/te_macros:404: Warning: excess arguments to builtin `define' ignored
[  3% 3579/114975] build out/target/product/taimen/obj/ETC/vendor_sepolicy.cil_intermediates/vendor_policy.conf
m4:system/sepolicy/public/te_macros:404: Warning: excess arguments to builtin `define' ignored
[  3% 3607/114975] build out/target/product/taimen/obj/ETC/sepolicy_neverallows_intermediates/policy.conf
m4:system/sepolicy/public/te_macros:404: Warning: excess arguments to builtin `define' ignored
[  3% 3677/114975] build out/target/product/taimen/obj/ETC/built_plat_sepolicy_intermediates/base_plat_policy.conf
m4:system/sepolicy/public/te_macros:404: Warning: excess arguments to builtin `define' ignored

Test: policy compiles and no warnings.
Change-Id: Ie32d8b536955b40888b79e3a93851d2ae297f8ee